Article
Physics, Particles & Fields
Abdulrahim Al Balushi, Robie A. Hennigar, Hari K. Kunduri, Robert B. Mann
Summary: In the study of holographic complexity for rotating black holes within the framework of complexity equals action and complexity equals volume conjectures, a simplification was found in a class of odd-dimensional equal-spinning black holes. A direct connection between complexity of formation and thermodynamic volume for large black holes was uncovered. The rate of growth of complexity was also examined, revealing that it approaches a constant at late times, but Lloyd's bound is generally violated.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Ming Zhang, Chaoxi Fang, Jie Jiang
Summary: Based on the complexity equals action (CA) and complexity equals volume (CV) conjectures, we investigate the holographic complexity of a slowly accelerating Kerr-AdS black hole in the bulk Einstein gravity theory which is dual to holographic states with rotation and conical deficits in the boundary quantum system. We evaluate the action and show that the growth rate of the CA complexity violates volume-scaling formulation in large black hole limit due to the non-trivial contribution from the not-too-small acceleration of the black hole. Moreover, we find that complexity of formation decreases with both the average and difference of the conical deficits on the poles when the black hole is close to the static limit but increases with the deficits when the black hole is close to the extremal regime.
Article
Physics, Particles & Fields
Wen-Bin Xu, Shao-Feng Wu
Summary: Based on the AdS/CFT correspondence, this study investigates the reconstruction of bulk spacetime metrics using various quantum information measures on the boundary field theories. Different reconstruction methods are proposed, all of which avoid UV divergence and are driven by derivatives of the measures with respect to the boundary scales. It is demonstrated that the measures of spatial entanglement and time-evolved complexity can be used to reconstruct the exterior and interior of a black hole, respectively, and that the reconstruction method based on complexity=volume 2.0 is the simplest and exhibits strong locality.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Takaaki Ishii, Keiju Murata, Jorge E. Santos, Benson Way
Summary: In this study, rotating global AdS solutions in five-dimensional Einstein gravity coupled to a multiplet complex scalar within a cohomogeneity-1 ansatz were investigated. The onset of gravitational and scalar field superradiant instabilities of the Myers-Perry-AdS black hole lead to bifurcation points, resulting in black resonators and hairy Myers-Perry-AdS black holes, respectively. The solutions exhibit properties of multioscillating solutions with multiple scalar components excited. It was also observed that hairy black holes with higher scalar wavenumbers dominate entropy and occupy more phase space.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Roberto Emparan, Juan F. Pedraza, Andrew Svesko, Marija Tomasevic, Manus R. Visser
Summary: This study investigates the generation and thermodynamic properties of quantum black holes in three-dimensional de Sitter space, using both braneworld holography and non-holographic perturbative analysis. The results reveal similarities to classical four-dimensional black holes and provide insights into the holographic dual description of de Sitter spacetimes.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Roberto Emparan, Raimon Luna, Ryotaku Suzuki, Marija Tomasevic, Benson Way
Summary: We describe the dynamical evaporation of a black hole as its classical evolution in an Anti-de Sitter braneworld. The intersection of the horizon of a bulk black hole with the brane gives the classical bulk dual of a black hole coupled to quantum conformal fields. The evaporation occurs when the bulk horizon slides off the brane and the horizon on the brane shrinks.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Tomas Andrade, Christiana Pantelidou
Summary: We study the scalar and vector channels of gravitational quasinormal modes for Lifshitz black branes in Einstein-Maxwell-Dilaton and Einstein-Proca theories. We find significant differences between the two models, particularly in the dispersion relations for the shear and sound modes. Through the holographic duality, this calculation provides information about the relaxation of momentum and energy flux operators in a putative dual Lifshitz field theory. Comparing with the results obtained directly from Lifshitz hydrodynamics suggests that the mass density of the equilibrium state in the Einstein-Maxwell-Dilaton model is infinite.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Neven Bilic, Julio C. Fabris
Summary: The paper discusses the approximation of a large AdS Schwarzschild black hole by an AdS planar black hole, and proposes a solution to the issue of undefined temperature of a planar black hole. It also suggests a relationship between the temperatures of an AdS planar and large AdS Schwarzschild black holes using the AdS/CFT holography.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Takaaki Ishii, Youka Kaku, Keiju Murata
Summary: This paper studies the phenomenon of superradiance in stationary black holes in asymptotically AdS spacetimes and characterizes it as the ability of energy extraction. Energy can be extracted from these black holes under appropriate boundary conditions, and the extraction process is reversible.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Jordan Cotler, Kristan Jensen
Summary: This work suggests that Euclidean wormholes provide a coarse-grained approximation to the energy level statistics of black hole microstates, and explores this phenomenon using specific methods.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Brett McInnes
Summary: It is shown that a four-dimensional Kerr black hole asymptotically flat has a smaller specific entropy than a Schwarzschild black hole of the same mass, and the same is true when the temperature is held fixed. Additionally, it is demonstrated that an asymptotically AdS(5)-Kerr black hole has a smaller specific entropy than an AdS(5)-Schwarzschild black hole of the same temperature, except in a negligibly small class of special examples. The application of QGP theory to predict the behavior of black hole entropy in the AdS(5)-Kerr case agrees with the results of the study.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Jean-Marc Schlenker, Edward Witten
Summary: In the study of AdS/CFT correspondence, the puzzle of amplitudes associated with connected bulk manifolds and disconnected boundaries has been a longstanding mystery. This paper sharpens the puzzle by analyzing a class of observables that do not show effects of ensemble averaging. These observables involve states that are above the ground state by a fixed amount in the large N limit, and are far from being black hole states. The authors explore the example of D=3 and prove that connected solutions of Einstein's equations with disconnected boundaries do not contribute to these observables. The apparent ensemble averaging in some observables is proposed to be a reflection of the chaotic nature of black hole physics and the absence of a large N limit in the Hilbert space describing black holes.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Emanuele Panella, Andrew Svesko
Summary: We construct a three-dimensional quantum-corrected Kerr-de Sitter black hole using braneworld holography, taking into account the semi-classical backreaction effects caused by a holographic conformal field theory. The quantum Kerr black hole shares many qualitative features with the classical four-dimensional Kerr-de Sitter solution, including inner and outer black hole horizons and a ring singularity hidden by these horizons. The quantum-corrected geometry also has extremal, Nariai, and ultracold limits, which are fibered products of a circle and two-dimensional anti-de Sitter, de Sitter, and Minkowski space respectively. The classical bulk black hole thermodynamics is interpreted as the thermodynamics of the quantum black hole on the brane, following a semi-classical first law where the Bekenstein-Hawking area entropy is replaced by the generalized entropy. We also derive the renormalized quantum stress-tensor due to a free conformally coupled scalar field in the classical Kerr-de Sitter conical geometry and perturbatively solve for its backreaction for comparison purposes.
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
Wen-Bin Xu, Shao-Feng Wu
Summary: Based on the AdS/CFT correspondence, this study investigates the reconstruction of bulk spacetime metrics using various quantum information measures on the boundary field theories, such as entanglement entropy, mutual information, entanglement of purification, and computational complexity. Several reconstruction methods are proposed, all of which are free from UV divergence and most of which are driven by the derivatives of the measures with respect to the boundary scales. It is demonstrated that the exterior and interior of a black hole can be reconstructed using measures of spatial entanglement and time-evolved complexity, respectively, with each requiring different boundary scales.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Stefano Baiguera, Troels Harmark, Nico Wintergerst
Summary: The study explores the limits of N = 4 super Yang-Mills theory approaching BPS bounds with preserved SU(1,1) structure, resulting in non-relativistic theories with emerging U(1) symmetry. Reduction of N = 4 SYM on a three-sphere and subsequent integration of non-dynamical fields as the bounds are approached lead to these near-BPS theories. Through quantization and normal-ordering, they are consistent with taking appropriate limits of the dilatation operator, corresponding to Spin Matrix theories found in previous literature.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Stefano Baiguera, Troels Harmark, Yang Lei, Nico Wintergerst
Summary: The study focuses on limits of N = 4 super-Yang-Mills theory approaching BPS bounds, leading to non-relativistic near-BPS theories known as Spin Matrix theories. By reducing N = 4 SYM on a three-sphere and integrating out certain fields, the near-BPS theories can be obtained. The near-BPS limit with SU(1, 2|2) symmetry shows new features, including a dynamical gauge field, which differs from previous cases with SU(1) symmetry.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Roberto Auzzi, Stefano Baiguera, Sara Bonansea, Giuseppe Nardelli, Kristian Toccacelo
Summary: In this study, we investigated the relationship between complexity and volume in Janus AdS(3) geometries, finding that complexity becomes temperature-dependent in the presence of defects. For the time-dependent Janus BTZ black hole, the couplings of the entangled CFTs do not affect the complexity rate when equilibrium is restored. Additionally, the complexity rate for the out-of-equilibrium system is always smaller compared to the pure BTZ black hole background.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nicolo Zenoni, Roberto Auzzi, Stefania Caggioli, Maria Martinelli, Giuseppe Nardelli
Summary: An analytic static monopole solution in global AdS(4) is found, which is mapped to a falling monopole configuration in the Poincare patch. The energy-momentum tensor for the monopole quench is found to have the same functional form as a quench dual to a falling black hole. However, the spread of entanglement entropy for the monopole quench shows differences compared to the falling black hole case, as there is a competition between negative and positive contributions to the entropy increment.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Roberto Auzzi, Stefano Baiguera, Sara Bonansea, Giuseppe Nardelli
Summary: Research has found that the holographic complexity of formation for the AdS(3) 2-sided Randall-Sundrum model and the AdS(3)/BCFT2 models is logarithmically divergent according to the volume conjecture, while it is finite using the action proposal. One might be tempted to conclude that the UV divergences of the volume and action conjectures are always different for defects and boundaries in two-dimensional conformal field theories. However, in Janus AdS(3), it is found that both volume and action proposals provide the same kind of logarithmic divergences.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Stefano Baiguera, Troels Harmark, Yang Lei
Summary: This paper explores the limits of N = 4 super-Yang-Mills theory that approach BPS bounds. The resulting non-relativistic theories, known as Spin Matrix Theories, describe the effective dynamics near the BPS bounds and are obtained by reducing N = 4 SYM on a three-sphere and integrating out non-dynamical fields. Previous works have studied various subsectors in this limit, and this paper constructs the remaining Spin Matrix Theories near the 1/8-BPS subsectors. Hamiltonians are derived using the spherical reduction algorithm and shown to match the results from loop corrections. In the PSU(1,1 | 2) case, the positivity of the spectrum is proven by constructing cubic supercharges and their closure to the interacting Hamiltonian. The symmetry structure of the sectors is also analyzed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Stefano Baiguera, Lorenzo Bianchi, Shira Chapman, Damian A. Galante
Summary: The study explores the dependence of charged Renyi entropies on small shape deformations using holography, extracting coefficients and deriving numerical solutions and analytic expressions based on the relationship between chemical potential and replica number. It also demonstrates the conjectured relation between the two point function of the displacement operator and the conformal weight of the twist operator when the Renyi defect becomes supersymmetric.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Stefano Baiguera, Lorenzo Cederle, Silvia Penati
Summary: In this paper, we propose a renormalizable non-linear sigma model action that describes the relationship between Galilean Electrodynamics and N = 2 supersymmetry. By studying the model directly in non-relativistic superspace, we find that it is nonrenormalizable, but this issue is resolved by introducing infinitely many marginal couplings. The superconformal invariance is also preserved.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Roberto Auzzi, Stefano Bolognesi, Eliezer Rabinovici, Fidel I. Schaposnik Massolo, Gianni Tallarita
Summary: In this paper, we study the time-dependence of holographic complexity in a class of models with hairy black holes. We find that the volume complexity can only probe a portion of the black hole interior that remains far away from the singularity, while the action complexity can probe a portion closer to the singularity. Furthermore, we discover that the Kasner exponent does not directly affect the details of the complexity divergence and the late-time behavior.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Stefano Baiguera, Troels Harmark, Yang Lei
Summary: This paper constructs the Hamiltonian of PSU(1, 2|3) Spin Matrix theory, the largest Spin Matrix theory of N - 4 SYM, by considering a supercharge Q which is cubic in terms of the letters. The resulting Hamiltonian is automatically positive definite and manifestly invariant under supersymmetry. It is composed of basic blocks that transform as supermultiplets and has the novel feature of division into D-terms and F-terms that are separately invariant under PSU(1, 2|3) symmetry and positive definite.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Multidisciplinary
Stefano Baiguera, Gerben Oling, Watse Sybesma, Benjamin T. Sogaard
Summary: We construct two distinct actions for scalar fields that are invariant under local Car-roll boosts and Weyl transformations. We derive two types of conformal Carroll scalar actions with boost symmetry on a curved background in any dimension and compute their energy-momentum tensors, which are traceless. By integrating out these constraints, we show that the spatial conformal Carroll theories can be reduced to lower-dimensional Euclidean CFTs, which is reminiscent of the embedding space construction.
Article
Physics, Particles & Fields
Stefano Baiguera, Rotem Berman, Shira Chapman, Robert C. Myers
Summary: The reaction of the spacetime volume behind the cosmological horizon in Schwarzschild-dS space to the insertion of shock-waves is studied in order to characterize the properties of this dual theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Roberto Auzzi, Giuseppe Nardelli, Gabriel Pedde Ungureanu, Nicole Zenoni
Summary: In the framework of de Sitter holography, the growth of holographic complexity shows hyperfast behavior, unlike the case of AdS. Except for static bubble configurations, the complexity obtained from the volume of smooth extremal surfaces anchored on the AdS boundary behaves similarly to the AdS case, while the static bubble configuration exhibits zero complexity rate and resembles a first order phase transition.
Article
Astronomy & Astrophysics
Roberto Auzzi, Stefano Baiguera, G. Bruno De Luca, Andrea Legramandi, Giuseppe Nardelli, Nicolo Zenoni
Summary: The study focuses on quantum computational complexity and its applications in holographic understanding of the black hole interior. By choosing penalty factors, negative curvatures are achieved to reproduce desired features in holography. The relationship between operator and state complexities is analyzed, providing a direct relation between geodesics and curvatures and a closed-form expression for the metric in terms of the operators.
