Article
Physics, Mathematical
Christopher Raymond, Yoh Tanimoto, James E. Tener
Summary: We prove an equivalence between unitary Mobius vertex algebras and Wightman conformal field theories on the circle with finite-dimensional conformal weight spaces satisfying a uniformly bounded order condition. This equivalence provides new insights into vertex operators and OPEs of Wightman fields, and establishes a connection between unitary vertex operator algebras and conformal nets.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2022)
Review
Physics, Multidisciplinary
Agnese Bissi, Aninda Sinha, Xinan Zhou
Summary: This review provides a pedagogical introduction to the analytic conformal bootstrap program and reviews analytic methods and explicit examples related to it.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)
Article
Astronomy & Astrophysics
Stefano Baiguera, Sara Bonansea, Kristian Toccacelo
Summary: By computing holographic complexity for the nonsupersymmetric Janus deformation of AdS5, we found the appearance of a subleading logarithmic divergent term and a finite part in the volume complexity of the corresponding subregion located around the interface. We also discovered that the coefficient of the logarithmic term is universal for two different regularization prescriptions of the divergences.
Article
Astronomy & Astrophysics
Oliver DeWolfe, Kenneth Higginbotham
Summary: In this discussion, the electromagnetic dualization of 1-form to a 2-form in AdS(5) is shown to exchange regular and alternate boundary conditions, thereby gauging the originally global U(1) symmetry in the dual field theory. This method is then applied to a Maxwell-Chern-Simons theory in AdS, resulting in a theory with a modified field strength that holographically realizes a 2-group symmetry. The holographic renormalization is explicitly carried out to verify the results, and the potential generalization to other rank fields in different dimensions is also discussed.
Article
Physics, Multidisciplinary
Chao Yin, Zhenhuan Liu
Summary: We calculate the entanglement between two intervals in the ground state of a (1 + 1)-dimensional conformal field theory using a computable cross norm (CCNR) measure called E. Unlike other measures, E has a universal expression that depends only on the geometry, central charge c, and thermal partition function of the CFT, even for disjoint intervals. We prove this expression using the replica approach and find that the Riemann surface for calculating E is always topologically equivalent to a torus. Numerical verification is done in the spin-1/2 XXZ chain, confirming our findings in the Luttinger liquid.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Gergely Kantor, Constantinos Papageorgakis, Vasilis Niarchos
Summary: This Letter introduces the application of reinforcement-learning algorithms in the conformal-bootstrap program for obtaining numerical solutions of conformal field theories (CFTs) for the first time. By using a soft actor-critic algorithm, approximate solutions to the truncated crossing equations of two-dimensional CFTs are found, successfully identifying well-known theories such as the 2D Ising model and the 2D CFT of a compactified scalar. The methods presented in this study can efficiently perform high-dimensional searches to examine arbitrary (unitary or nonunitary) CFTs in any spacetime dimension.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Tarek Anous, Marco Meineri, Pietro Pelliconi, Julian Sonner
Summary: In this paper, we explore models of large black holes in anti-de Sitter space coupled to an external bath. By analyzing geodesics, we establish methods for calculating the Hawking radiation entropy in the gravitational braneworld and the entanglement entropy in the BCFT.
Article
Physics, Particles & Fields
Sara Murciano, Pasquale Calabrese, Robert M. Konik
Summary: This paper introduces and studies a class of generalized Renyi entropies defined through the traces of products of eigenstates in a two-dimensional conformal field theory (CFT). Using the path integral formalism and the free bosonic theory, the authors develop an efficient strategy to compute these generalized Renyi entropies and obtain new results for the standard Renyi and relative entropies involving arbitrary descendent states of the bosonic CFT.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Claudio Coriano, Matteo Maria Maglio, Riccardo Tommasi
Summary: We analyze the perturbative realization of the TTJJ correlator using free field theory and integrating out conformal sectors in quantum corrections. Our study allows for the definition of an exact perturbative expansion of the complete anomaly effective action and provides predictions that can be compared with those of the anomaly induced action. We discuss the renormalization procedure, the degeneracies of the tensor structures, and derive the anomalous trace Ward identities for a generic conformal field theory.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Astronomy & Astrophysics
Yuya Kusuki, Kotaro Tamaoka
Summary: The dynamics of entanglement wedge cross section is derived directly from two-dimensional holographic CFTs with a local operator quench, based on the reflected entropy. The comparison with mutual information and results for integrable systems suggests classical correlation plays an important role in chaotic systems. Additionally, a study on the reflected entropy in heavy primary states shows a breaking of the subsystem ETH, and results were also confirmed for odd entanglement entropy.
Article
Astronomy & Astrophysics
Felix M. Haehl, Wyatt Reeves, Moshe Rozali
Summary: In this article, we study quantum chaotic conformal field theories (CFTs) that exhibit linear growth of the spectral form factor, which indicates universal repulsion of energy levels. We find that the spectral correlations and the subleading corrections to the linear growth are determined by the Kuznetsov trace formula, highlighting the intricate interplay between the universal physical properties of chaotic CFTs and analytic number theory. The trace formula reveals that the simplest CFT correlations consistent with quantum chaos are precisely those described by a Euclidean wormhole in AdS3 gravity with [torus] x [interval] topology. We also discuss examples of nonchaotic CFTs in this framework.
Article
Physics, Particles & Fields
Gleb A. Kotousov, Sergei L. Lukyanov
Summary: An integrable system, a generalization of the sl(2) quantum affine Gaudin model, with constructed Hamiltonians and calculated spectrum, fits into the framework of Yang-Baxter integrability, providing a way for systematic quantization of a large class of integrable non-linear sigma models. It may be of interest in terms of Condensed Matter applications as a multiparametric generalization of the Kondo model.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Lucia Cordova, Stefano Negro, Fidel I. Schaposnik Massolo
Summary: In this paper, we analyze the Thermodynamic Bethe Ansatz (TBA) for various integrable S-matrices in the context of generalized T(T)bar deformations, with a focus on the sinh-Gordon model and its elliptic deformation. We confirm that the determining factor for a turning point in the TBA is the difference between the number of bound states and resonances in the theory. By implementing a numerical method, we are able to follow the solutions to the TBA equations to the ultraviolet regime and find that the effective central charge tends to zero as the number of resonances approaches infinity. Additionally, we uncover a new family of UV complete integrable theories defined by the bosonic counterparts of the S-matrices.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Multidisciplinary Sciences
Raffaele Marotta
Summary: This article summarizes recent findings on the single and double soft theorems of two different particles, namely the dilatons and the massless scalar particles. It discusses the similarities and differences between the soft theorems of these particles and their connections with the symmetries of the theories.
Article
Astronomy & Astrophysics
Daniel Kapec, Y. T. Albert Law, Sruthi A. Narayanan
Summary: This study demonstrates the same identification between gravity and quantum field theory as expectations derived from the celestial conformal field theory formalism for gravity in asymptotically flat spacetimes. The soft limits of moduli scalars in the sigma model are universal and relate to the parallel transport of S-matrix observables over the moduli space of bulk vacua. The leading soft moduli operator corresponds to a marginal deformation in the conformal field theory and coherent states of the soft scalars correspond to finite deformations along the conformal manifold.
Article
Physics, Particles & Fields
Bogdan Damski
Summary: In this paper, we discuss the dynamics of field configurations in the Proca theory of the real massive vector field, specifically focusing on a certain class of electric (magnetic) dipole-charged states. We construct these states to ensure that the long-distance structure of the mean electromagnetic field is initially set by the formula describing the electromagnetic field of the electric (magnetic) dipole. We analyze the evolution of this mean electromagnetic field over time and observe the phenomena of harmonic oscillations of the electric (magnetic) dipole moment far from the center of the initial field configuration, as well as the emergence of a spherical shock wave propagating at the speed of light near the center. Additionally, we discover a unique axisymmetric mean electric field configuration accompanying the mean magnetic field in magnetic dipole-charged states.
Article
Physics, Particles & Fields
Brett McInnes
Summary: The time-dependence of AdS black hole interior geometries poses challenges to holographic duality and the traversability of wormholes. Quantum circuit complexity of strongly coupled matter can address the first challenge. Data from a phenomenological model show an upper bound on the complexity growth rate, which becomes stricter with the addition of angular momentum. The slowing of black hole interior dynamics at high specific angular momentum also occurs.
Article
Physics, Particles & Fields
M. Beccaria, S. Giombi, A. A. Tseytlin
Summary: This article investigates the superconformal index Z of the 6d (2,0) theory on S5 x S1 and describes it using the quantum M2 brane theory in the large N limit. By studying M2 branes in a twisted product of thermal AdS7 and S4, the leading non-perturbative term at large N is shown to be reproduced by the 1-loop partition function of an instanton M2 brane wrapped on S1 x S2 with S2 c S4. Similarly, the partition function of a defect M2 brane wrapped on thermal AdS3 c AdS7 reproduces the BPS Wilson loop expectation value in the (2,0) theory. The article also comments on the analogy of these results with similar computations in the quantum M2 brane partition function in AdS4 x S7/DOUBLE-STRUCK CAPITAL Zk, which reproduced the corresponding localization expressions in the ABJM 3d gauge theory.
Article
Physics, Particles & Fields
Carlos Silva
Summary: This paper explores the nature of spacetime in quantum gravity based on a new version of the holographic principle that establishes a connection between string theory and polymer holonomy structures. The research findings suggest that, for this relationship to hold, spacetime must be perceived as emerging from a fundamental structure with degrees of freedom corresponding to quantum correlations only.
Article
Physics, Particles & Fields
A. Senol, H. Denizli, C. Helveci
Summary: This study investigates new physics using a Monte Carlo method, and the results show stronger limitations on anomalous quartic gauge couplings compared to previous experiments.