High Energy Physics - Theory

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New submissions for Wed, 1 May 24

[1]  arXiv:2404.18994 [pdf, other]

Title: Building the Blocks of Schwarzschild

Authors: Raphaël Dulac, Pierre Heidmann

Comments: 36 pages + Appendix, 19 figures

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)

We demonstrate that the Schwarzschild black hole can be ``resolved'' into bound states of Reissner-Nordstr\"om black holes in four dimensions. These bound states closely resemble the Schwarzschild geometry from the asymptotic region up to an infinitesimal distance away from the Schwarzschild horizon. Below this scale, the horizon is replaced by novel spacetime structures supported by intense and entrapped electromagnetic flux. The flux originates from collinear black holes that can be brought arbitrarily close to extremality. We find that the charge distribution follows a universal pattern, with magnitudes scaling proportionally to the total mass and alternating in sign. Moreover, the bound states always have an entropy that constitutes a fraction of the Schwarzschild entropy. Constructed in four dimensions, the black holes are kept apart by struts, for which we analyze tensions and energies. These solutions pave the way for analogous constructions in supergravity and for a brane/anti-brane description of the Schwarzschild black hole in string theory.

[2]  arXiv:2404.18995 [pdf, other]

Title: Flux vacua in type IIB compactifications on orbifolds: their finiteness and minimal string coupling

Authors: Ignatios Antoniadis, Anthony Guillen, Osmin Lacombe

Comments: 51 pages, 3 figures, comments are welcome

Subjects: High Energy Physics - Theory (hep-th)

We perform a detailed study of (supersymmetric) moduli stabilisation in type IIB toroidal orientifolds with fluxes. We provide strong evidence towards the finiteness of the number of inequivalent vacua for a given total 3-form flux charge $N_{\rm flux}$. We also find that the minimal value of the string coupling $g_s$ is given in terms of $N_{\rm flux}$ and present strong evidence for the asymptotic relation $g_{s,\,\rm{min}}\sim c/N_{\rm flux}^\alpha$, with $\alpha=1,2$, valid for not too small $N_{\rm flux}$, where $c$ is an order 1 coefficient and $\alpha$ depends on the orbifold. Imposing tadpole cancellation, $N_{\rm flux}$ is bounded from the number of orientifold O3-planes. Combined with the flux quantisation, this reduces considerably the allowed vacua while the lower bound of the string coupling is then not far from unity. On the other hand, the presence of negative D3-brane charge induced by magnetised D7-branes breaks supersymmetry and relaxes the bound, allowing significantly smaller values for $g_s$.

[3]  arXiv:2404.19016 [pdf, other]

Title: $\mathcal{N} = 2$ superconformal higher-spin multiplets and their hypermultiplet couplings

Authors: Ioseph Buchbinder, Evgeny Ivanov, Nikita Zaigraev

Comments: 0 + 57 pages

Subjects: High Energy Physics - Theory (hep-th)

We construct an off-shell $\mathcal{N}=2$ superconformal cubic vertex for the hypermultiplet coupled to an arbitrary integer higher spin ${\bf s}$ gauge $\mathcal{N}=2$ supermultiplet % in flatfour-dimensional space. in a general $\mathcal{N}=2$ conformal supergravity background. We heavily use $\mathcal{N}=2, 4D$ harmonic superspace that provides an unconstrained superfield Lagrangian description. We start with $\mathcal{N}=2$ global superconformal symmetry transformations of the free hypermultiplet model and require invariance of the cubic vertices of general form under these transformations and their gauged version. As a result, we deduce $\mathcal{N}=2, 4D$ unconstrained analytic superconformal gauge potentials for an arbitrary integer ${\bf s}$. These are the basic ingredients of the approach under consideration. We describe the properties of the gauge potentials, derive the corresponding superconformal and gauge transformation laws, and inspect the off-shell contents of the thus obtained $\mathcal{N}=2$ superconformal higher-spin ${\bf s}$ multiplets in the Wess-Zumino gauges. The spin ${\bf s}$ multiplet involves $8(2{\bf s} -1)_B + 8(2{\bf s}-1)_F$ essential off-shell degrees of freedom. The cubic vertex has the generic structure higher spin gauge superfields $\times$ hypermultiplet supercurrents. We present the explicit form of the relevant supercurrents.

[4]  arXiv:2404.19029 [pdf, ps, other]

Title: Unveiling Novel Insights in Quantum Dynamics through Extended Sachdev-Ye-Kitaev Model

Authors: Davood Momeni

Comments: 43 pages

Subjects: High Energy Physics - Theory (hep-th)

Inspired by recent developments in the study of the model of double scaled SYK (DSSYK), as elucidated in a recent paper, we embark on a re-evaluation of the Sachdev-Ye-Kitaev (SYK) model. Our motivation stems from the insights gained from the DSSYK model, particularly its ability to capture essential features of quantum dynamics and gravitational effects. In this work, we delve into the SYK model, uncovering precise solutions for the two-point function and self-energy that have not been previously reported. Building upon the advancements made in particle physics phenomenology, we extend the SYK model to encompass tensor field theory. Through the incorporation of a cutoff term to ensure convergence, we substantially advance our understanding of quantum many-body physics. Our investigation extends to experimental parameter estimation and the exploration of cutoff dependency in random couplings, providing invaluable insights into system dynamics. The introduction of a novel tensor field theory replaces conventional fermionic degrees of freedom with tensorial counterparts, leading to the discovery of intriguing phase transition phenomena characterized by a first-order transition. Furthermore, we elucidate a direct linear relationship between the coupling parameter and the cutoff scale. These findings not only shed light on emergent behavior across both high-energy physics and condensed matter systems but also pave the way for further theoretical and experimental exploration, inspired by the recent advancements in the SYK model.

[5]  arXiv:2404.19079 [pdf, ps, other]

Title: $N=(2,2)$ superfields and geometry revisited

Authors: Chris Hull, Maxim Zabzine

Comments: 43 pages

Subjects: High Energy Physics - Theory (hep-th); Differential Geometry (math.DG); Symplectic Geometry (math.SG)

We take a fresh look at the relation between generalised K\"ahler geometry and $N=(2,2)$ supersymmetric sigma models in two dimensions formulated in terms of $(2,2)$ superfields. Dual formulations in terms of different kinds of superfield are combined to give a formulation with a doubled target space and both the original superfield and the dual superfield. For K\"ahler geometry, we show that this doubled geometry is Donaldson's deformation of the holomorphic cotangent bundle of the original K\"ahler manifold. This doubled formulation gives an elegant geometric reformulation of the equations of motion. We interpret the equations of motion as the intersection of two Lagrangian submanifolds (or of a Lagrangian submanifold with an isotropic one)in the infinite dimensional symplectic supermanifold which is the analogue of phase space. We then consider further extensions of this formalism, including one in which the geometry is quadrupled, and discuss their geometry.

[6]  arXiv:2404.19080 [pdf, ps, other]

Title: Brown-Kuchar Mechanism for Unstable D-Brane at Large Tachyon Regime

Authors: J. Kluson

Comments: 22 pages

Subjects: High Energy Physics - Theory (hep-th)

We study space-time filling unstable D-brane coupled to gravity. We find Hamiltonian for this D-brane and then we implement Brown-Kuchar formalism for this system. We calculate algebra of constraints of deparametrized theory and we show that for large $T$ the Poisson brackets between new constraints are zero. Then we define gauge invariant functions on phase space following deparametrization construction introduced in [9].

[7]  arXiv:2404.19147 [pdf, ps, other]

Title: Asymptotically conserved charges and 2-kink collision in quasi-integrable potential KdV models

Authors: Harold Blas

Comments: Latex, 18 pages, 2 Figs

Subjects: High Energy Physics - Theory (hep-th); Mathematical Physics (math-ph); Exactly Solvable and Integrable Systems (nlin.SI)

We study a particular deformation of the potential KdV model (pKdV) and construct the quasi-conservation laws by a direct method. The charge densities, differing from their integrable counterpart with homogeneous degree terms, exhibit mixed scale dimension terms. The modifications of the charges around the soliton interaction regions are examined by numerically simulating some representative anomalies. We show numerically the elastic scattering of two kinks for a wide range of values of the deformation parameters. It is discussed an anomaly cancellation mechanism to define an exact conservation law of the usual pKdV model, and a renormalization procedure is introduced for some divergent charges by subtructing the continuous linear background contribution. The KdV-type equations are quite ubiquitous in several areas of non-linear science, such as the study of General Relativity in $AdS_{3}$, Bose-Einstein condensates, superconductivity and fluid dynamics.

[8]  arXiv:2404.19160 [pdf, ps, other]

Title: How to define the Unruh-DeWitt detector on manifolds

Authors: Tomohiro Matsuda

Comments: 21 pages, 6 figures

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc)

The vacuum of an accelerating observer is defined on the local inertial frame, which is called a ``moving frame''. However, in the discussion of the Unruh-deWitt detector, many papers define the vacuum on a fixed frame. This paper discusses the Unruh-deWitt detector by defining the vacuum directly on the local inertial frame, showing that the problem of the Stokes phenomenon can be solved by using the exact WKB.

[9]  arXiv:2404.19258 [pdf, ps, other]

Title: Deconfinement to confinement by generalizing BRST symmetry on the sphere

Authors: Haresh Raval

Comments: 14 pages, published

Journal-ref: Int.J.Mod.Phys.A 39 (2024) 04, 2450021

Subjects: High Energy Physics - Theory (hep-th)

Recently it has been shown that the theory in the quadratic gauge on 4-sphere, $\mathbb{S}^{4}$ consists of two phases namely, the confined and the deconfined phases. A suitable finite field dependent BRST (FFBRST) transformation interrelates two different gauge fixed theories. In this paper, we use the FFBRST technique on the curved space for the first time and elaborate a novel application of it. We propose two different formulations of this technique that transform the deconfined phase action on sphere to the confined phase action on sphere inside the quadratic gauge. Both proposed passages change the phase with BRST invariance to the phase without BRST invariance unlike usual connections where the FFBRST operation leave the BRST symmetry intact and there is a unique field theoretic essence of them, which makes them particularly important to study. Thus, the two different field redefinitions act as a new mechanism that execute phase transition between two real QCD phases on 4-sphere other than ghost condensation process.

[10]  arXiv:2404.19400 [pdf, ps, other]

Title: The strong CP problem revisited and solved by the gauge group topology

Authors: F. Strocchi

Comments: 22 pages

Subjects: High Energy Physics - Theory (hep-th)

We exploit the non-perturbative result that the $\theta$ angle which defines the vacuum structure is not a $c$-number free parameter, as suggested by the instanton semi-classical approximation, but instead one of the points of the spectrum of the central operator $\tilde{\theta}$ which describes the gauge group topology. Hence, the value of such an angle should not be \textit{a priori} fixed, but rather be determined, as any quantum operator, by the infinite volume limit of the functional integral, where the fermionic mass term uniquely fixes the phase, with $< \tilde{\theta} > = \theta_M$, the mass angle. Such an equality is stable under radiative corrections performed before the infinite volume limit of the functional integral.
The mechanisms is carefully controlled in the massive Schwinger model with attention to the infrared problems, to the volume effects induced by boundary terms and with a careful discussion of the infinite volume limit of the functional integral. The extension to the QCD case relies on the choice of modified APS boundary conditions which do not break chiral symmetry, allowing for the crucial role of the fermionic mass term in uniquely determining the phase, with a solution of the strong $CP$ problem.

[11]  arXiv:2404.19411 [pdf, other]

Title: Trace conservation laws in $T^2/Z_m$ orbifold gauge theories

Authors: Kota Takeuchi, Tomohiro Inagaki

Comments: 32 pages, 2 figures

Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)

Gauge theory compactified on an orbifold is defined by gauge symmetry, matter contents, and boundary conditions. There are equivalence classes (ECs), each of which consists of physically equivalent boundary conditions. We propose the powerful necessary conditions, trace conservation laws (TCLs), which achieve a sufficient classification of ECs in U(N) and SU(N) gauge theories on $T^2/Z_m$ orbifolds $(m=2,3,4,6)$. The TCLs yield the equivalent relations between the diagonal boundary conditions without relying on an explicit form of gauge transformations. The TCLs also show the existence of off-diagonal ECs, which consist only of off-diagonal matrices, on $T^2/Z_4$ and $T^2/Z_6$. After the sufficient classification, the exact numbers of ECs are obtained.

[12]  arXiv:2404.19414 [pdf, other]

Title: Toward the application of large-$N$ deconfinement to SU(3) QCD

Authors: Hiromasa Watanabe

Comments: 14 pages, 5 figures, Contribution to the proceedings of "Workshop on Noncommutative and Generalized Geometry in String Theory, Gauge Theory and Related Physical Models" in the Corfu Summer Institute 2023, 18 - 25 September 2023, Corfu, Greece, based on arXiv:2310.01940 [hep-th] and arXiv:2310.07533 [hep-th]

Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)

It is generally known for $\mathrm{U}(N)$ gauge theory at finite temperature that phase transitions are manifested by taking the large-$N$ limit. Since the large-$N$ theory undergoes two thermodynamic phase transitions, a nontrivial intermediate phase can be realized in addition to the phases classified as the conventional confined and deconfined phases. In this talk, we discuss that a similar picture can be applied to QCD with $N=3$. In particular, we analyze the gauge configurations of lattice QCD calculations involving dynamical quarks and show the results of an analysis of the deviation due to finite-temperature effects from the Haar randomness expected at zero temperature in $\mathrm{SU}(N)$ gauge theory, using physical pictures suggested by the large-$N$ theory.

[13]  arXiv:2404.19526 [pdf, ps, other]

Title: Scale and Conformal Invariance in 2d Sigma Models, with an Application to N=4 Supersymmetry

Authors: George Papadopoulos, Edward Witten

Comments: 31 pp

Subjects: High Energy Physics - Theory (hep-th)

By adapting previously known arguments concerning Ricci flow and the c-theorem, we give a direct proof that in a two-dimensional sigma-model with compact target space, scale invariance implies conformal invariance in perturbation theory. This argument, which applies to a general sigma-model constructed with a target space metric and B-field, is in accord with a more general proof in the literature that applies to arbitrary two-dimensional quantum field theories. Models with extended supersymmetry and a B-field are known to provide interesting test cases for the relation between scale invariance and conformal invariance in sigma-model perturbation theory. We give examples showing that in such models, the obstructions to conformal invariance suggested by general arguments can actually occur in models with target spaces that are not compact or complete. Thus compactness of the target space, or at least a suitable condition of completeness, is necessary as well as sufficient to ensure that scale invariance implies conformal invariance in models of this type.

[14]  arXiv:2404.19571 [pdf, ps, other]

Title: A note on background independence in $\text{AdS}_3$ string theory

Authors: Bob Knighton

Comments: 17 pages

Subjects: High Energy Physics - Theory (hep-th)

In this note, we comment on the path integral formulation of string theory on $\mathcal{M}\times\text{S}^3\times\mathbb{T}^4$ where $\mathcal{M}$ is any hyperbolic 3-manifold. In the special case of $k=1$ NS-NS flux, we provide a covariant description of the worldsheet theory and argue that the path integral depends only on the details of the conformal boundary $\partial\mathcal{M}$, making the background independence of this theory manifest. We provide a simple path integral argument that the path integral localizes onto holomorphic covering maps from the worldsheet to the boundary. For closed manifolds $\mathcal{M}$, the gravitational path integral is argued to be trivial. This implies that the bulk gravitational theory has precisely one state in its Hilbert space. Finally, we comment on the effect of continuous deformations of the worldsheet theory which introduce non-minimal string tension.

[15]  arXiv:2404.19657 [pdf, other]

Title: The Unreasonable Effectiveness of the Tunneling Potential

Authors: J.R. Espinosa

Comments: 22 pages. Contribution to the Proceedings of the Corfu Summer Institute 2023 "School and Workshops on Elementary Particle Physics and Gravity"

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)

The Tunneling Potential Formalism was introduced to calculate the tunneling actions that control vacuum decay as an alternative to the standard Euclidean Formalism. The new approach sets the problem as a simple variational problem in field space with decay described by a tunneling potential function $V_t$ that extremizes a simple action functional $S[V_t]$ and has a number of appealing properties that have been presented elsewhere. In this note I discuss several instances in which this $V_t$ approach seems to give more than one would have expected a priori, as the following: the $V_t$ describing the decay is a minimum of the new action $S[V_t]$ rather than a saddle point; the decay of AdS, dS or Minkowski vacua are governed by a unique universal $S[V_t]$ which also gives the Hawking-Moss instanton in the appropriate limit; physically relevant solutions beyond the Coleman-De Luccia (CdL) bounce, like pseudo-bounces or bubbles of nothing (BoNs), show up in a straightforward way as generalizations of the CdL bounce, with the correct boundary conditions; in cases for which the Euclidean action calculation requires the inclusion of particular boundary terms (like for BoNs or for the decay of AdS maxima above the Breitenlohner-Freedman bound) $S[V_t]$ gives the correct result without the need of including any boundary term.

[16]  arXiv:2404.19761 [pdf, other]

Title: Generalized Symmetries in 2D from String Theory: SymTFTs, Intrinsic Relativeness, and Anomalies of Non-invertible Symmetries

Authors: Sebastian Franco, Xingyang Yu

Comments: 42 pages, 8 figures

Subjects: High Energy Physics - Theory (hep-th)

Generalized global symmetries, in particular non-invertible and categorical symmetries, have become a focal point in the recent study of quantum field theory (QFT). In this paper, we investigate aspects of symmetry topological field theories (SymTFTs) and anomalies of non-invertible symmetries for 2D QFTs from a string theory perspective. Our primary focus is on an infinite class of 2D QFTs engineered on D1-branes probing toric Calabi-Yau 4-fold singularities. We derive 3D SymTFTs from the topological sector of IIB supergravity and discuss the resulting 2D QFTs, which can be intrinsically relative or absolute. For intrinsically relative QFTs, we propose a sufficient condition for them to exist. For absolute QFTs, we show that they exhibit non-invertible symmetries with an elegant brane origin. Furthermore, we find that these non-invertible symmetries can suffer from anomalies, which we discuss from a top-down perspective. Explicit examples are provided, including theories for $Y^{(p,k)}(\mathbb{P}^2)$, $Y^{(2,0)}(\mathbb{P}^1\times \mathbb{P}^1)$, and $\mathbb{C}^4/\mathbb{Z}_4$ geometries.

Cross-lists for Wed, 1 May 24

[17]  arXiv:2404.15470 (cross-list from math-ph) [pdf, ps, other]

Title: Supersymmetric Analysis of Spinning Cosmic String Spacetime Within External fields with Aharonov-Bohm interaction

Authors: O. Yesiltas, B. B. Oner

Comments: 19 pages

Subjects: Mathematical Physics (math-ph); High Energy Physics - Theory (hep-th)

The supersymmetric analysis of spinning cosmic string spacetime, involving an electron in magnetic fields, has been conducted. We examined the Dirac system within extended special functions known as exceptional orthogonal polynomials. Corresponding Dirac system is transformed to a relativistic system with a nonlinear isotonic oscillator. Furthermore, new potential models that extend the radial oscillator by adding rational terms are expressed in terms of the exceptional orthogonal Laguerre $X_{m}$ polynomial. The necessary analyses of the potential, energy levels, and probability density graphs are introduced for various cosmic string topological defects and Aharonov-Bohm interaction parameters.

[18]  arXiv:2404.18956 (cross-list from gr-qc) [pdf, other]

Title: Quantum Field Theory of Black Hole Perturbations with Backreaction: I. General framework

Authors: Thomas Thiemann

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

In a seminal work, Hawking showed that natural states for free quantum matter fields on classical spacetimes that solve the spherically symmetric vacuum Einstein equations are KMS states of non-vanishing temperature. Although Hawking's calculation does not include backreaction of matter on geometry, it is more than plausible that the corresponding Hawking radiation leads to black hole evaporation which is in principle observable.
Obviously, an improvement of Hawking's calculation including backreaction is a problem of quantum gravity. Since no commonly accepted quantum field theory of general relativity is available yet, it has been difficult to reliably derive the backreaction effect. An obvious approach is to use black hole perturbation theory of a Schwarzschild black hole of fixed mass and to quantise those perturbations. But it is not clear how to reconcile perturbation theory with gauge invariance beyond linear perturbations.
In a recent work we proposed a new approach to this problem that applies when the physical situation has an approximate symmetry, such as homogeneity (cosmology), spherical symmetry (Schwarzschild) or axial symmetry (Kerr). The idea, which is surprisingly feasible, is to first construct the non-perturbative physical (reduced) Hamiltonian of the reduced phase space of fully gauge invariant observables and only then to apply perturbation theory directly in terms of observables. The task to construct observables is then disentangled from perturbation theory, thus allowing to unambiguosly develop perturbation theory to arbitrary orders.
In this first paper of the the series we outline and showcase this approach for spherical symmetry and second order in the perturbations for Einstein-Klein-Gordon-Maxwell theory. Details and generalisation to other matter and symmetry and higher orders will appear in subsequent companion papers.

[19]  arXiv:2404.18958 (cross-list from gr-qc) [pdf, ps, other]

Title: Quantum Field Theory of Black Hole Perturbations with Backreaction II. Spherically symmetric 2nd order Einstein sector

Authors: Jonas Neuser, Thomas Thiemann

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

In this second paper of our series we focus on the classical pure gravity sector of spherically symmetric black hole perturbations and expand the reduced Hamiltonian to second order. To compare our manifestly gauge invariant formalism with established results in the literature we have to translate our results derived in Gullstrand-Painlev\'e gauge to the gauges used in those works. After several canonical transformations we expectedly find exact agreement with the Hamiltonian given by Moncrief which generates the Regge-Wheeler and Zerilli equations of motion for the linear axial (often denoted odd) and polar (often denoted even) perturbations respectively. This confirms the validity of our method which immediately generalises to higher orders.

[20]  arXiv:2404.18959 (cross-list from gr-qc) [pdf, ps, other]

Title: Quantum Field Theory of Black Hole Perturbations with Backreaction III. Spherically symmetric 2nd order Maxwell sector

Authors: Jonas Neuser, Thomas Thiemann

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

In this paper we extend reduced phase space approach to black hole perturbation theory to Maxwell matter. We expand the resulting reduced Hamiltonian to second order in the graviton and photon perturbations and find that the corresponding equations of motion match the ones derived in the literature. Accordingly our approach reproduces previous results at second order. Its real virtue lies in the fact that it extends to any order in perturbation theory in a manifestly gauge invariant fashion.

[21]  arXiv:2404.19004 (cross-list from cond-mat.str-el) [pdf, other]

Title: Topological holography for fermions

Authors: Rui Wen, Weicheng Ye, Andrew C. Potter

Comments: 44 pages, 19 figures

Subjects: Strongly Correlated Electrons (cond-mat.str-el); High Energy Physics - Theory (hep-th); Quantum Physics (quant-ph)

Topological holography is a conjectured correspondence between the symmetry charges and defects of a $D$-dimensional system with the anyons in a $(D+1)$-dimensional topological order: the symmetry topological field theory (SymTFT). Topological holography is conjectured to capture the topological aspects of symmetry in gapped and gapless systems, with different phases corresponding to different gapped boundaries (anyon condensations) of the SymTFT. This correspondence was previously considered primarily for bosonic systems, excluding many phases of condensed matter systems involving fermionic electrons. In this work, we extend the SymTFT framework to establish a topological holography correspondence for fermionic systems. We demonstrate that this fermionic SymTFT framework captures the known properties of $1+1D$ fermion gapped phases and critical points, including the classification, edge-modes, and stacking rules of fermionic symmetry-protected topological phases (SPTs), and computation of partition functions of fermionic conformal field theories (CFTs). Beyond merely reproducing known properties, we show that the SymTFT approach can additionally serve as a practical tool for discovering new physics, and use this framework to construct a new example of a fermionic intrinsically gapless SPT phase characterized by an emergent fermionic anomaly.

[22]  arXiv:2404.19009 (cross-list from cond-mat.stat-mech) [pdf, other]

Title: Classical origins of Landau-incompatible transitions

Authors: Abhishodh Prakash, Nick G. Jones

Comments: 6+8 pages, 3+7 figures (main + appendices)

Subjects: Statistical Mechanics (cond-mat.stat-mech); Strongly Correlated Electrons (cond-mat.str-el); High Energy Physics - Theory (hep-th)

Continuous phase transitions where symmetry is spontaneously broken are ubiquitous in physics and often found between `Landau-compatible' phases where residual symmetries of one phase are a subset of the other. However, continuous `deconfined quantum critical' transitions between Landau-incompatible symmetry-breaking phases are known to exist in certain quantum systems, often with anomalous microscopic symmetries. In this paper, we investigate the need for such special conditions. We show that Landau-incompatible transitions can be found in a family of well-known classical statistical mechanical models with anomaly-free on-site microscopic symmetries, introduced by Jos\'{e}, Kadanoff, Kirkpatick and Nelson (Phys. Rev. B 16, 1217). The models are labeled by a positive integer $Q$ and constructed by a deformation of the 2d classical XY model, defined on any lattice, with an on-site potential that preserves a discrete $Q$-fold spin rotation and reflection symmetry. For a range of temperatures, even $Q$ models exhibit two Landau-incompatible partial symmetry-breaking phases and a direct transition between them for $Q \ge 4$. Characteristic features of Landau-incompatible transitions are easily seen, such as enhanced symmetries and melting of charged defects. For odd $Q$, and corresponding temperature ranges, two regions of a single partial symmetry-breaking phase are obtained, split by a stable `unnecessary critical' line. We present quantum models with anomaly-free symmetries that also exhibit similar phase diagrams.

[23]  arXiv:2404.19012 (cross-list from gr-qc) [pdf, other]

Title: Neutron stars and the cosmological constant problem

Authors: Giulia Ventagli, Pedro G. S. Fernandes, Andrea Maselli, Antonio Padilla, Thomas P. Sotiriou

Comments: 21 pages, 15 figures

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

Phase transitions can play an important role in the cosmological constant problem, allowing the underlying vacuum energy, and therefore the value of the cosmological constant, to change. Deep within the core of neutron stars, the local pressure may be sufficiently high to trigger the QCD phase transition, thus generating a shift in the value of the cosmological constant. The gravitational effects of such a transition should then be imprinted on the properties of the star. Working in the framework of General Relativity, we provide a new model of the stellar interior, allowing for a QCD and a vacuum energy phase transition. We determine the impact of a vacuum energy jump on mass-radius relations, tidal deformability-radius relations, I-Love-Q relations and on the combined tidal deformability measured in neutron star binaries.

[24]  arXiv:2404.19078 (cross-list from math.CO) [pdf, ps, other]

Title: Billiard Partitions, Fibonacci Sequences, SIP Classes, and Quivers

Authors: Vladimir Dragović, Marko Stošić

Comments: 14 pages, accepted in Proceedings of the American Mathematical Society

Subjects: Combinatorics (math.CO); High Energy Physics - Theory (hep-th); Mathematical Physics (math-ph); Dynamical Systems (math.DS); Quantum Algebra (math.QA)

Starting from billiard partitions which arose recently in the description of periodic trajectories of ellipsoidal billiards in $d$-dimensional Euclidean space, we introduce a new type of separable integer partition classes, called type B. We study the numbers of basis partitions with $d$ parts and relate them to the Fibonacci sequence and its natural generalizations. Remarkably, the generating series of basis partitions can be related to the quiver generating series of symmetric quivers corresponding to the framed unknot via knots-quivers correspondence, and to the count of Schr\"oder paths.

[25]  arXiv:2404.19162 (cross-list from gr-qc) [pdf, ps, other]

Title: Hidden Symmetries of Power-Law Inflation

Authors: Takeshi Chiba, Tsuyoshi Houri

Comments: 5 pages

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

A scalar field with an exponential potential in FLRW universe admits the exact solution. We uncover the hidden symmetries behind the system by utilising the Eisenhart lift of field theories. We find that a conformal Killing vector field in the field space exists only for a particular combination of exponential functions which includes a single exponential potential. This implies the existence of additional conserved quantity and explains the integrability of the system.

[26]  arXiv:2404.19194 (cross-list from astro-ph.CO) [pdf, other]

Title: Updated observational constraints on spatially-flat and non-flat $Λ$CDM and XCDM cosmological models

Authors: Javier de Cruz Perez, Chan-Gyung Park, Bharat Ratra

Comments: 71 pages, 33 figures

Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

We study 6 LCDM models, with 4 allowing for non-flat geometry and 3 allowing for a non-unity lensing consistency parameter $A_L$. We also study 6 XCDM models with a dynamical dark energy density X-fluid with equation of state $w$. For the non-flat models we use two different primordial power spectra, Planck $P(q)$ and new $P(q)$. These models are tested against: Planck 2018 CMB power spectra (P18) and lensing potential power spectrum (lensing), and an updated compilation of BAO, SNIa, $H(z)$, and $f\sigma_8$ data [non-CMB data]. P18 data favor closed geometry for the LCDM and XCDM models and $w<-1$ (phantom-like dark energy) for the XCDM models while non-CMB data favor open geometry for the LCDM models and closed geometry and $w>-1$ (quintessence-like dark energy) for the XCDM models. When P18 and non-CMB data are jointly analyzed there is weak evidence for open geometry and moderate evidence for quintessence-like dark energy. Regardless of data used, $A_L>1$ is always favored. The XCDM model constraints obtained from CMB data and from non-CMB data are incompatible, ruling out the 3 $A_L = 1$ XCDM models at $> 3\sigma$. In the 9 models not ruled out, for the P18+lensing+non-CMB data set we find little deviation from flat geometry and moderate deviation from $w=-1$. In all 6 non-flat models (not ruled out), open geometry is mildly favored, and in all 3 XCDM+$A_L$ models (not ruled out) quintessence-like dark energy is moderately favored (by at most $1.6 \sigma$). In the $A_L = 1$ non-flat LCDM cases, we find for P18+lensing+non-CMB data $\Omega_k = 0.0009 \pm 0.0017$ [$0.0008 \pm 0.0017$] for the Planck [new] $P(q)$ model, favoring open geometry. The flat LCDM model remains the simplest (largely) observationally-consistent cosmological model. Our cosmological parameter constraints obtained for the flat LCDM model (and other models) are the most restrictive results to date (Abridged).

[27]  arXiv:2404.19213 (cross-list from gr-qc) [pdf, ps, other]

Title: Nonexistence of Majorana fermions in Kerr-Newman type spacetimes with nontrivial charge

Authors: Hequn Zhang, Xiao Zhang

Comments: 8 pages

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th); Differential Geometry (math.DG)

In this short paper, we study Majorana fermions in terms of a modified Chandrasekhar's separation for the Dirac equation in Kerr-Newman-type spacetimes. If the electric charge or magnetic charge is nonzero, we show that nontrivial differentiable time-periodic Majorana fermions do not exist outside the event horizon in Kerr-Newman and Kerr-Newman-AdS spacetimes, and between the event horizon and the cosmological horizon in Kerr-Newman-dS spacetime.

[28]  arXiv:2404.19342 (cross-list from hep-ph) [pdf, other]

Title: Small Instanton Effects on Composite Axion Mass

Authors: Takafumi Aoki, Masahiro Ibe, Satoshi Shirai, Keiichi Watanabe

Comments: 29 pages, 5 figures

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

This paper investigates the impact of small instanton effects on the axion mass in the composite accidental axion (CAA) models. These models are designed to address the axion quality problem, where QCD gauge symmetry is embedded as an unbroken diagonal subgroup of a product gauge group. These models contain small instantons not included in low-energy QCD, which could enhance the axion mass significantly. However, in the CAA models, our analysis reveals that these effects on the axion mass are non-vanishing but are negligible compared to the QCD effects. This highlights the important role of anomalous but non-spontaneously broken U(1) symmetries in restricting the impact of small instantons on the axion mass. Our study provides crucial insights into the dynamics within CAA models and suggests broader implications for understanding small instanton effects in other composite axion models.

[29]  arXiv:2404.19413 (cross-list from hep-lat) [pdf, ps, other]

Title: Gauge invariant discretization of Chern-Simons couplings

Authors: Kohta Hatakeyama, Matsuo Sato, Gota Tanaka

Subjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

We discretize Chern-Simons couplings in gauge invariant way. We obtain (p+q)-forms representing Chern-Simons couplings on (p + q)-simplexes from wedge products of p- and q-forms on p- and q-simplexes, respectively, where p- and q-simplexes form (p+q)-simplexes by having a common vertex. We show that the Chern-Simons couplings on simplicial complexes reduce to Chern-Simons couplings on the manifolds in a continuum limit. Moreover, we prove that a typical discretized Chern-Simons term that has the Chern-Simons coupling is gauge invariant.

[30]  arXiv:2404.19437 (cross-list from astro-ph.CO) [pdf, other]

Title: Quintom cosmology and modified gravity after DESI 2024

Authors: Yuhang Yang, Xin Ren, Qingqing Wang, Zhiyu Lu, Dongdong Zhang, Yi-Fu Cai, Emmanuel N. Saridakis

Comments: 10 pages, 3 figures

Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

We reconstruct the cosmological background evolution under the scenario of dynamical dark energy through the Gaussian process approach, using the latest Dark Energy Spectroscopic Instrument (DESI) baryon acoustic oscillations (BAO) \cite{DESI:2024mwx} combined with other observations. Our results reveal that the reconstructed dark-energy equation-of-state (EoS) parameter $w(z)$ exhibits the so-called quintom-B behavior, crossing $-1$ from phantom to quintessence regime as the universe expands. We investigate under what situation this type of evolution could be achieved from the perspectives of field theories and modified gravity. In particular, we reconstruct the corresponding actions for $f(R)$, $f(T)$, and $f(Q)$ gravity, respectively. We explicitly show that, certain modified gravity can exhibit the quintom dynamics and fit the recent DESI data efficiently, and for all cases the quadratic deviation from the $\Lambda$CDM scenario is mildly favored.

[31]  arXiv:2404.19470 (cross-list from gr-qc) [pdf, ps, other]

Title: New phenomenology in the first-order thermodynamics of scalar-tensor gravity for Bianchi universes

Authors: Julien Houle, Valerio Faraoni

Comments: 10 pages, no figures

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

The phase space of Bianchi I universes in vacuum Brans-Dicke gravity is analyzed in terms of physical variables. The behaviour of the solutions of the field equations near the fixed points (which are solutions of Einstein gravity) is compared with basic ideas of the recent first-order thermodynamics of scalar-tensor gravity, elucidating new phenomenology.

[32]  arXiv:2404.19498 (cross-list from gr-qc) [pdf, other]

Title: Into the MAG-verse or: Cosmology of the Complete Quadratic Metric-Affine Gravity

Authors: Damianos Iosifidis, Konstantinos Pallikaris

Comments: 29 pages, 2 figures, PDF with matrix coefficients included

Subjects: General Relativity and Quantum Cosmology (gr-qc); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th)

We study the cosmology of the complete quadratic (in torsion and nonmetricity) metric-affine gravity. Namely, we add to the scalar-curvature gravitational Lagrangian, the 17 independent quadratic (parity-even and parity-odd) torsion and nonmetricity invariants. Sticking to a homogeneous and isotropic Friedmann-Robertson-Walker spacetime and assuming a perfect hyperfluid source, we explore the new effects that torsion and nonmetricity bring into play. It is shown that the inclusion of these invariants offers rich phenomenology. In particular, some well-known examples of exotic matter like cosmic strings, domain walls, stiff matter, etc., emerge quite naturally as manifestations of the fluid's intrinsic structure (hypermomentum). By studying the extended Friedmann equations in the complete quadratic theory and isolating the various parts of the hypermomentum, we find a plethora of solutions with interesting features.

[33]  arXiv:2404.19695 (cross-list from gr-qc) [pdf, ps, other]

Title: Early dark energy and scalarization in a scalar-tensor model

Authors: H. Mohseni Sadjadi

Comments: 17 pages, 6 figures

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

We present a model in which the Gauss-Bonnet invariant holds the quintessence at a fixed point, respecting an initial $Z_2$ symmetry in the radiation-dominated era. This results in an early dark energy, which becomes significant around the matter-radiation equality era. However, due to $Z_2$ symmetry breaking, scalarization occurs, leading to a rapid reduction in the early dark energy density. The model then quickly behaves like the $\Lambda$CDM model. This scenario alleviates the Hubble tension and aligns with the assumption that the gravitational wave speed is infinitesimally close to the speed of light.

[34]  arXiv:2404.19726 (cross-list from hep-ph) [pdf, other]

Title: On the inefficiency of fermion level-crossing under the parity-violating spin-2 gravitational field

Authors: Kohei Kamada, Jun'ya Kume

Comments: 34 pages, 5 figures

Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

Gravitational chiral anomaly connects the topological charge of spacetime and the chirality of fermions. It has been known that the chirality is carried by the particles (or the excited states) and also by vacuum. While the gravitational anomaly equation has been applied to cosmology, distinction between these two contributions has been rarely discussed. In the study of gravitational leptogenesis, for example, lepton asymmetry associated with the chiral gravitational waves sourced during inflation is evaluated only by integrating the anomaly equation. How these two contributions are distributed has not been seriously investigated. Meanwhile, a dominance of vacuum contribution is observed in some specific types of Bianchi spacetime with parity-violating gravitational fields, whose application to cosmology is not straightforward. One may wonder whether such a vacuum dominance takes place also in the system with chiral gravitational waves around the flat background, which is more suitable for application to realistic cosmology. In this work, we apply an analogy between U(1) electromagnetism and the weak gravity to the spacetime that resembles the one considered in the gravitational leptogenesis scenario. This approach allows us to obtain intuitive understanding of the fermion chirality generation under the parity-violating spin-2 gravitational field. By assuming the emergence of Landau level-like dispersion relation in our setup, we conjecture that level-crossing does not seem to be efficient while the charge accumulation in the vacuum likely takes place. Phenomenological implication is also discussed in the context of gravitational leptogenesis.

Replacements for Wed, 1 May 24

[35]  arXiv:2112.03319 (replaced) [pdf, other]

Title: Carrollian and celestial spaces at infinity

Authors: José Figueroa-O'Farrill, Emil Have, Stefan Prohazka, Jakob Salzer

Comments: 34+6 pages, 6 figures, v2: Appendix E added, v3: Various minor improvements, matches published version

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); Differential Geometry (math.DG)

[36]  arXiv:2210.02707 (replaced) [pdf, ps, other]

Title: Assisted baryon number violation from $4k+2$ dimensions

Authors: Akshay A, Mathew Thomas Arun

Comments: 32 pages, 2 figures, Accepted for publication in PRD

Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th)

[37]  arXiv:2212.11002 (replaced) [pdf, other]

Title: Stress tensors of 3d Carroll CFTs

Authors: Sudipta Dutta

Comments: 22 pages

Subjects: High Energy Physics - Theory (hep-th)

[38]  arXiv:2301.12938 (replaced) [pdf, other]

Title: Approach to the arbitrariness problem of boundary conditions in $S^1/Z_2$ brane-world models

Authors: Kota Takeuchi, Tomohiro Inagaki

Comments: 14 pages, 2 figures

Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)

[39]  arXiv:2307.13418 (replaced) [pdf, ps, other]

Title: Hybrid Goldstone Modes from the Double Copy Bootstrap

Authors: Yang Li, Diederik Roest, Tonnis ter Veldhuis

Comments: 8 pages, 3 tables; v2: version to appear in PRL

Subjects: High Energy Physics - Theory (hep-th)

[40]  arXiv:2307.13454 (replaced) [pdf, other]

Title: String amplitudes and mutual information in confining backgrounds: the partonic behavior

Authors: Mahdis Ghodrati

Comments: v4: 44 pages, 23 figures, references and few clarifications have been added

Subjects: High Energy Physics - Theory (hep-th)

[41]  arXiv:2308.11377 (replaced) [pdf, other]

Title: Cosmological Constant and Maximum of Entropy for de Sitter Space

Authors: Igor Volovich

Comments: 9 pages, 4 figures, refs added

Subjects: High Energy Physics - Theory (hep-th)

[42]  arXiv:2308.15542 (replaced) [pdf, other]

Title: Inelastic decay from integrability

Authors: Amir Burshtein, Moshe Goldstein

Comments: Close to published version

Journal-ref: PRX Quantum 5, 020323 (2024)

Subjects: Quantum Physics (quant-ph); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Strongly Correlated Electrons (cond-mat.str-el); High Energy Physics - Theory (hep-th)

[43]  arXiv:2309.00930 (replaced) [pdf, ps, other]

Title: Tensor Loop Reduction via the Baikov Representation and an Auxiliary Vector

Authors: Liang Zhang

Comments: 28 pages, an ancillary file

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[44]  arXiv:2309.12021 (replaced) [pdf, ps, other]

Title: More Fermionic Supersymmetric Wilson loops in Four Dimensions

Authors: Hao Ouyang, Jun-Bao Wu

Comments: v1, 18 pages, 4 figures; v2, minor changes, 18 pages, 4 figures; v3, minor changes, 18 pages, 4 figures

Journal-ref: Phys. Lett. B 853 (2024) 138649

Subjects: High Energy Physics - Theory (hep-th)

[45]  arXiv:2309.16944 (replaced) [pdf, other]

Title: Image of Kerr-de Sitter black holes illuminated by equatorial thin accretion disks

Authors: Ke Wang, Chao-Jun Feng, Towe Wang

Comments: 17 pages, 10 figures, refs added, typos corrected

Subjects: General Relativity and Quantum Cosmology (gr-qc); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th)

[46]  arXiv:2310.01940 (replaced) [pdf, other]

Title: A new perspective on thermal transition in QCD

Authors: Masanori Hanada, Hiroki Ohata, Hidehiko Shimada, Hiromasa Watanabe

Comments: v3. 18 pages, 5 figures, 1 table, final version published in PTEP

Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)

[47]  arXiv:2310.08629 (replaced) [pdf, ps, other]

Title: Axions and Superfluidity in Weyl Semimetals

Authors: Emil Mottola, Andrey V. Sadofyev, Andreas Stergiou

Comments: 51 pages, 7 figures. v2: Minor emendations, references added. Published version

Subjects: High Energy Physics - Theory (hep-th); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Strongly Correlated Electrons (cond-mat.str-el)

[48]  arXiv:2311.02161 (replaced) [pdf, other]

Title: Parity violation in gravitational waves and observational bounds from third-generation detectors

Authors: Matteo Califano, Rocco D'Agostino, Daniele Vernieri

Comments: 19 pages, 8 figures. Accepted for publication in Phys. Rev. D

Subjects: General Relativity and Quantum Cosmology (gr-qc); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th)

[49]  arXiv:2311.17763 (replaced) [pdf, other]

Title: On-shell functions on the Coulomb branch of $\mathcal{N}=4$ SYM

Authors: Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar, Arnab Priya Saha, Amit Suthar

Comments: 59 pages, 10 figures, Minor changes: improved presentation, Version to appear in JHEP

Subjects: High Energy Physics - Theory (hep-th)

[50]  arXiv:2312.00363 (replaced) [pdf, ps, other]

Title: Searching for discrete series representations at the late-time boundary of de Sitter

Authors: Gizem Şengör

Comments: This version is accepted as part of the proceedings of the 15th International Workshop on Lie Theory and Its Applications in Physics. Major revision, new section added with input from the referee

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc)

[51]  arXiv:2312.01918 (replaced) [pdf, other]

Title: On the covariant formulation of gauge theories with boundaries

Authors: Mehdi Assanioussi, Jerzy Kowalski-Glikman, Ilkka Mäkinen, Ludovic Varrin

Comments: 47 pages; minor corrections; further references added

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc)

[52]  arXiv:2312.06878 (replaced) [pdf, other]

Title: Static sphere observers and geodesics in Schwarzschild-de Sitter spacetime

Authors: Mir Mehedi Faruk, Edward Morvan, Jan Pieter van der Schaar

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

[53]  arXiv:2312.13344 (replaced) [pdf, other]

Title: Improving the five-point bootstrap

Authors: David Poland, Valentina Prilepina, Petar Tadić

Comments: 27 pages, 1 attached Mathematica notebook, v2: minor error fixed, v3: small adjustments

Subjects: High Energy Physics - Theory (hep-th); Statistical Mechanics (cond-mat.stat-mech); Strongly Correlated Electrons (cond-mat.str-el); High Energy Physics - Lattice (hep-lat)

[54]  arXiv:2401.08288 (replaced) [pdf, other]

Title: Finding origins of CMB anomalies in the inflationary quantum fluctuations

Authors: Enrique Gaztañaga, K. Sravan Kumar

Comments: 63 pages, 22 figures, version accepted for publication in JCAP

Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

[55]  arXiv:2402.00056 (replaced) [pdf, other]

Title: Pauli-Villars regularization of Kaluza-Klein Casimir energy with Lorentz symmetry

Authors: Hiroki Matsui, Yutaka Sakamura

Comments: 27 pages, 2 figures, published version

Journal-ref: Prog. Theor. Exp. Phys. 2024 043B06

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)

[56]  arXiv:2402.01847 (replaced) [pdf, other]

Title: Relativity of the event: examples in JT gravity and linearized GR

Authors: Francesco Nitti, Federico Piazza, Alexander Taskov

Comments: 40 pages, 10 Figures. Comments welcome. v2: improved discussion, references added

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc)

[57]  arXiv:2403.10775 (replaced) [pdf, ps, other]

Title: Mode Recombination Formula and Nonanalytic Term in Effective Potential at Finite Temperature on Compactified Space

Authors: Makoto Sakamoto, Kazunori Takenaga

Comments: 24 pages, Typos corrected, version to appear in Phys.Rev.D

Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)

[58]  arXiv:2403.15519 (replaced) [pdf, ps, other]

Title: Generation of narrow beams of super high-energy gamma quanta in the resonant inverse Compton-effect in the field of a strong x-ray wave

Authors: Sergei P. Roshchupkin, Sergey B. Makarov

Comments: 31 pages, 9 figures, 5 tables

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Theory (hep-th)

[59]  arXiv:2403.17796 (replaced) [pdf, other]

Title: Solution Generation of a Capped Black Hole

Authors: Ryotaku Suzuki, Shinya Tomizawa

Comments: 33 pages, 13 figures; v2: fixed minor typos

Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc)

[60]  arXiv:2404.01844 (replaced) [pdf, ps, other]

Title: Generalized Calogero-Moser system and supergroup gauge origami

Authors: Taro Kimura, Norton Lee

Comments: 28+4 pages. hyperlink fixed, add reference. arXiv admin note: text overlap with arXiv:1908.04928

Subjects: High Energy Physics - Theory (hep-th)

[61]  arXiv:2404.06601 (replaced) [pdf, other]

Title: On the Symmetry TFT of Yang-Mills-Chern-Simons theory

Authors: Riccardo Argurio, Francesco Benini, Matteo Bertolini, Giovanni Galati, Pierluigi Niro

Comments: 32 pages, 7 figures, 9 tubes; v2: refs added, typos corrected, many clarifications

Subjects: High Energy Physics - Theory (hep-th)

[62]  arXiv:2404.07782 (replaced) [pdf, other]

Title: Gravitational-wave lensing in Einstein-aether theory

Authors: Julius Streibert, Hector O. Silva, Miguel Zumalacárregui

Comments: 19 pages plus appendices, 4 figures

Subjects: General Relativity and Quantum Cosmology (gr-qc); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[63]  arXiv:2404.08032 (replaced) [pdf, other]

Title: Finite modular symmetries and the strong CP problem

Authors: J. T. Penedo, S. T. Petcov

Comments: 19 pages, 2 figures, 3 tables; comments added; typos corrected; numerics improved, results updated accordingly; main conclusions unchanged

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[64]  arXiv:2404.12325 (replaced) [pdf, other]

Title: Two-loop integrals for $t \bar{t} +$jet production at hadron colliders in the leading colour approximation

Authors: Simon Badger, Matteo Becchetti, Nicolò Giraudo, Simone Zoia

Comments: 22 pages, 7 figures, 3 tables, 3 appendices

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[65]  arXiv:2404.14981 (replaced) [pdf, other]

Title: Discontinuities in the Evolution of Properties of Kerr Black Holes in the Extremal Limit

Authors: Tongyu Zhang, Moe Vali

Comments: 2 figures, 9 pages. Literature review

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

[66]  arXiv:2404.16028 (replaced) [pdf, other]

Title: Some aspects of symmetry descent

Authors: Iñaki García Etxebarria, Saghar S. Hosseini

Comments: References added, minor improvement of presentation

Subjects: High Energy Physics - Theory (hep-th)

• New submissions
• Cross-lists
• Replacements