Article
Physics, Particles & Fields
Lin Chen, Xirong Liu, Ling-Yan Hung
Summary: The article discusses a new method of bending the BTZ black hole connection on the Bruhat-Tits tree and demonstrates its correlation with CFT at finite temperatures. By specific coordinate transformations, the connection between p-adic BTZ background and Bruhat-Tits tree background is established, revealing non-trivial local Weyl transformations in the CFT.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Yi Ling, Peng Liu, Yuxuan Liu, Chao Niu, Zhuo-Yu Xian, Cheng-Yong Zhang
Summary: This paper studies the reflected entropy in holographic setup and introduces the concept of quantum entanglement wedge cross-section. The reflected entropy is numerically computed in AdS background and black hole background.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Arjun Kar, Lampros Lamprou, Moshe Rozali, James Sully
Summary: In this paper, we study the notion of operator complexity in holographic quantum theories, introducing a refined version of K-complexity that is applicable to theories with infinite or continuous spectra. The study of holographic theories reveals that the operator dynamics exhibits exponential growth during a scrambling time, followed by linear growth until saturation at a time exponential in the entropy, which indicates chaotic behavior. We establish a connection between the linear growth regime and a universal random matrix description of operator dynamics after scrambling.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
William D. Biggs, Jorge E. Santos
Summary: We construct the holographic duals to a large N, strongly coupled N = 4 super Yang-Mills conformal field theory defined on a four-dimensional de Sitter-Schwarzschild background. There are two distinct five-dimensional bulk solutions: the static black tunnel with two disconnected horizons, and the black hammock with one horizon in the bulk. The hammock horizon is not a Killing horizon, possessing interesting properties like non-vanishing expansion and shear, and allowing classical flow along it.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Marina David, Alfredo Gonzalez Lezcano, Jun Nian, Leopoldo A. Pando Zayas
Summary: This study investigates logarithmic corrections to the entropy of supersymmetric, rotating, asymptotically AdS(5) black holes and black strings. It uses the AdS/CFT correspondence to determine the entropy on the field theory side. The results show perfect agreement between gravitational and field-theoretic methods, providing a window into precision microstate counting and demonstrating the efficacy of low-energy, symmetry-based approaches for asymptotically AdS black objects under certain conditions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Yi Ling, Yuxuan Liu, Zhuo-Yu Xian
Summary: The study investigates the information paradox of eternal black holes with charges in a doubly-holographic model, involving calculating entanglement entropy and proposing two strategies to address the paradox. The research aims to properly describe the black hole information paradox using enough degrees of freedom on the brane in the doubly-holographic setup.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Hao Geng, Severin Lust, Rashmish K. Mishra, David Wakeham
Summary: The study explores the AdS/BCFT duality between two-dimensional conformal field theories and three-dimensional anti-de Sitter space with KarchRandall branes, focusing on entanglement entropy and communication between braneworld black holes. A consistent Page curve is found, with gravitational results matching field theory calculations. At zero temperature, an interesting extension to the AdS3/BCFT2 correspondence is uncovered, revealing different gravitational duals based on the value of Delta bcc.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Norihiro Iizuka, Akihiro Ishibashi, Kengo Maeda
Summary: We study the flows of non-supersymmetric attractor black holes and find two types of extremal black hole solutions with attractor mechanism: one smooth at the horizon and the other non-smooth. The former is thermodynamically unstable, while the latter is stable.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Qiang Wen
Summary: In this article, we introduce a new information theoretical quantity called balanced partial entanglement (BPE) for any bipartite mixed state. We discuss its relation with purifications and find that in holographic CFT2, BPE equals the area of the entanglement wedge cross section divided by 4G.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Hare Krishna, D. Rodriguez-Gomez
Summary: In this study, 2-point correlation functions for scalar operators in position space are examined using holography, with a focus on operators with large conformal dimensions. The geodesic approximation is utilized for propagators. In addition to the main contribution, a correction involving bulk cubic couplings and higher curvature couplings is identified, which provides insight into the interior of a black hole.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Alex May, Mark Van Raamsdonk
Summary: The paper explains approximating states of a holographic CFT by states of non-interacting BCFTs and reintroducing couplings to make wormholes traversable, creating an intermediate class of geometries.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Yi-Yu Lin, Jia-Rui Sun, Jun Zhang
Summary: In this study, the partial entanglement entropy is explicitly interpreted as component flow flux in a locking bit thread configuration within the holographic framework. By applying the locking theorem of bit threads, a set of uniquely determined component flow fluxes is obtained, and the PEE proposal and its generalized version in multipartite cases are successfully derived. Furthermore, a coherent explanation is presented for the coincidence between the BPE/EWCS duality and the EoP/EWCS duality, based on the perspective of bit threads.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Hao Geng, Lisa Randall, Erik Swanson
Summary: This study analyzes the entanglement phase structure of a holographic boundary conformal field theory in a two-dimensional black hole background. The findings contribute to the understanding of the entanglement entropy for quantum field theory on a curved background.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Meng-Ting Wang, Hong-Yue Jiang, Yu-Xiao Liu
Summary: The connection between quantum information and quantum gravity has attracted the interest of physicists. A new class of gravitational observables has been proposed to explore holographic complexity. This paper investigates the generalized volume-complexity for the Reissner-Nordstrom-AdS black hole in 4 dimensions. The findings suggest a discontinuous variation in bulk physics that represents the complexity of the thermofield double state defined on the boundary.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Xuanhua Wang, Ran Li, Jin Wang
Summary: By applying the quantum extremal surface construction, we calculated the Page curve for eternal Reissner-Nordstrom black holes, ignoring backreaction and the greybody factor. The inclusion of islands outside the horizon of the black hole results in the entanglement entropy of Hawking radiation reproducing the Bekenstein-Hawking entropy with an additional term representing the effect of matter fields, helping to address the black hole information paradox.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Alexandre Belin, Diego M. Hofman, Gregoire Mathys, Matthew T. Walters
Summary: The study focuses on correlation functions involving generalized ANEC operators and extracting the algebra of these light-ray operators. A global subalgebra spanned by specific n values exists in conformal theories, while operators outside this range give rise to an infinite central term.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Alexandre Belin, Jan de Boer
Summary: The study proposes an ansatz for OPE coefficients in chaotic conformal field theories, generalizing the eigenstate thermalization hypothesis and describing heavy operators as random variables with a Gaussian distribution. By applying this ansatz in two dimensions, higher moments of OPE coefficients can be calculated and analyzed, while also relating them to genus-2 partition functions and their squares in the context of AdS(3) Einstein gravity solutions. The research suggests that calculations based on the semi-classical low-energy gravitational theory are primarily affected by the random nature of OPE coefficients, explaining the lack of factorization in partition function products.
CLASSICAL AND QUANTUM GRAVITY
(2021)
Article
Physics, Multidisciplinary
Nicolas Chagnet, Shira Chapman, Jan de Boer, Claire Zukowski
Summary: The study explores the circuit complexity of conformal field theory states in arbitrary dimensions, with circuits moving along a unitary representation of the Lorentzian conformal group. Different choices of distance functions are understood in terms of the geometry of coadjoint orbits of the conformal group. The study explicitly relates circuits to timelike geodesics in anti-de Sitter space, and the complexity metric to distances between these geodesics, extending the method to circuits in other symmetry groups using a group theoretic generalization of coherent states concept.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Alexandre Belin, Robert C. Myers, Shan-Ming Ruan, Gabor Sarosi, Antony J. Speranza
Summary: This paper presents a new infinite class of gravitational observables in asymptotically anti-de Sitter space living on codimension-one slices of the geometry, the most famous of which is the volume of the maximal slice. The authors show that these observables display universal features for the thermofield-double state, growing linearly in time at late times and reproducing the switchback effect in shock wave geometries. They argue that any member of this class of observables is an equally viable candidate as the extremal volume for a gravitational dual of complexity.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Particles & Fields
Edgar Shaghoulian
Summary: This paper explores whether the central dogma of cosmological horizons has any support and proposes consistent answers with the quantum theory of de Sitter space, including a vanishing total entropy, an entropy of A/4G(N) on a single static patch, increasing entropy of a subregion as the region size grows, an island-like transition at half the horizon size, and a de Sitter version of the Hartman-Maldacena transition.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Alexandre Belin, Jan de Boer, Pranjal Nayak, Julian Sonner
Summary: In this paper, we generalize the eigenstate thermalization hypothesis to systems with global symmetries and present two versions considering microscopic charge conservation and exponentially suppressed violations. These versions agree for correlation functions of simple operators, but differ in the variance of charged one-point functions at finite temperature. Applying these ideas to holography and gravitational low-energy effective theories, we find that Euclidean wormholes predict a non-zero variance for charged one-point functions, which contradicts microscopic charge conservation. This implies that global symmetries in quantum gravity must either be gauged or explicitly broken by non-perturbative effects.
Article
Physics, Particles & Fields
Jan de Boer, Ricardo Espindola, Bahman Najian, Dimitrios Patramanis, Jeremy van Der Heijden, Claire Zukowski
Summary: We study the parallel transport of modular Hamiltonians encoding entanglement properties of a state. In the case of 2d CFT, we find that the parallel transport process corresponds to a symplectic form in Euclidean geometry, which plays an important role in the entanglement wedge.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Jan de Boer, Jelle Hartong, Niels A. Obers, Watse Sybesma, Stefan Vandoren
Summary: Carroll symmetry, arising from the limit of vanishing speed of light, is studied and constraints on the energy-momentum tensor are determined. The findings suggest that Carroll symmetry may be relevant for dark energy and inflation.
FRONTIERS IN PHYSICS
(2022)
Article
Physics, Particles & Fields
Alexandre Belin, Jan de Boer, Diego Liska
Summary: The study investigates non-Gaussian corrections to the statistical distribution of heavy-heavy-heavy OPE coefficients in chaotic two-dimensional conformal field theories, finding that these corrections are further exponentially suppressed in the entropy, much like the Eigenstate Thermalization Hypothesis.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Tarek Anous, Alexandre Belin, Jan de Boer, Diego Liska
Summary: New asymptotic formulas for the distribution of OPE coefficients in conformal field theories are presented. These formulas, derived from crossing symmetry, involve products of multiple coefficients and introduce non-gaussianities into the statistical distribution.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Luis Apolo, Alexandre Belin, Suzanne Bintanja, Alejandra Castro, Christoph A. Keller
Summary: This study analyzes how deforming symmetric product orbifolds of two-dimensional N = 2 conformal field theories by an exactly marginal operator lifts higher spin currents present at the orbifold point. The results show that these currents are universally lifted regardless of the underlying CFT, but the details of the lifting depend on the central charge of the underlying CFT and the specific marginal operator in use. These findings are important for understanding the mechanism by which the stringy spectrum turns into a supergravity spectrum and the holographic nature of symmetric product orbifolds.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Shamit Kachru, Milind Shyani
Summary: Motivated by Dynamical Mean Field Theory results, this study examines the two-point function of fermions in an AdS(d+1) charged black brane background in the large d limit. We find the emergence of a locally critical form of the fermion self-energy with a highly constrained range of scaling behaviors at large d. Notable differences from the analysis in d=3,4 include an expanded range of temperatures where the results are applicable and the analytical tractability of the calculations.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Ahmed Almheiri, Alexandros Mousatov, Milind Shyani
Summary: We study a type of pure black hole microstates and show that they can escape by activating certain double trace deformations in the CFT. These microstates are associated with BCFT states prepared through a Euclidean path integral starting from a boundary in Euclidean time. They are connected to black holes in the bulk with an End-of-the-World brane, which is a timelike boundary of the spacetime behind the horizon. By adjusting the sign of the coupling of the double trace operator to the boundary conditions on the brane, the deformation introduces negative energy into the black hole, resulting in time advancement for signals behind the horizon. We demonstrate that the escapability property of the considered microstates is directly related to the traversability of deformed wormholes. We also briefly discuss the reconstruction of the black hole interior and state dependence.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Milind Shyani
Summary: We study the two point correlation function of a local operator on an n-sheeted replica manifold corresponding to the half-space in the vacuum state of a conformal field theory. In analogy with the inverse Laplace transform, we define the Renyi transform of this correlation function, which is a function of one complex variable w, dual to the Renyi parameter n. Inspired by the inversion formula of Caron-Huot, we argue that if the Renyi transform f (w) has bounded behavior at infinity in the complex w plane, the discontinuity of the Renyi transform disc f (w) provides the unique analytic continuation in n of the original replica correlation function. We check our formula by explicitly calculating the Renyi transform of a particular replica correlator in a large N holographic CFTd in dimensions d > 2. We also discover that the discontinuity of the Renyi transform is related to the matrix element of local operators between two distinct eigenstates of the modular Hamiltonian. We calculate the Renyi transform in 2d conformal field theories, and use it to extract the off-diagonal elements of (modular) ETH. We argue that in 2d, this is equivalent to the off-diagonal OPE coefficients of a CFT and show that our technique exactly reproduces recent results in the literature.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)