Article
Physics, Particles & Fields
Atanu Bhatta, Taniya Mandal
Summary: In this study, we compute the exact retarded Green's functions in thermal CFTs with chemical potential and angular momenta using holography. We consider the field equations satisfied by the quasi-normal modes in both charged and rotating black holes in AdS spacetime and map them to the Heun equations by appropriate changes of variables. The AGT correspondence allows us to find the connection formulae among the solutions of the Heun equations near different singularities by using the crossing relations of the five-point correlators in the Liouville CFT. The connection formulae associated with the boundary conditions imposed on the bulk field equations yield the exact thermal correlators in the boundary CFT.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
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
Elena Caceres, Rodrigo Castillo Vasquez, Alejandro Vilar Lopez
Summary: The study derives the holographic entanglement entropy functional for a gravitational theory up to cubic order in the Riemann tensor, showcasing the differences between minimal and non-minimal splittings. The results are applied to specific examples and show that causal wedge inclusion is respected for a wide range of values of the cubic coupling.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Andreas Karch, Zhu-Xi Luo, Hao-Yu Sun
Summary: This study explores entanglement entropy in 1+1 dimensional conformal field theories with interfaces from a holographic perspective, revealing that the location of the interface can affect the entanglement entropy, showing new patterns and universal relationships.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Emanuel Malek, Brandon Robinson, Henning Samtleben, Jesse van Muiden
Summary: Researchers utilized recently developed tools from exceptional field theory to calculate the full Kaluza-Klein spectrum of the AdS5 Pilch-Warner solution in type IIB supergravity, providing detailed information about the spectrum of protected and unprotected operators in the four-dimensional N = 1 Leigh-Strassler SCFT through the AdS/CFT correspondence. They also explicitly calculated the superconformal index of the SCFT in this limit and demonstrated its precise agreement with the spectrum of protected operators in the supergravity calculation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Adam Chalabi, S. Prem Kumar, Andy O'Bannon, Anton Pribytok, Ronnie Rodgers, Jacopo Sisti
Summary: In this study, entanglement entropy of a spherical region in (3 + 1)-dimensional N = 4 supersymmetric SU(N) Yang-Mills theory was computed using holographic methods. It was found that the entanglement entropy monotonically decreases as the sphere's radius increases, which is consistent with certain theoretical expectations. The study also observed similar decreasing trends in the entanglement entropy of a symmetric-representation Wilson line screened in SU(N - 1), even though there is no established physical principle to explain this behavior.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Mike Blake, Hong Liu
Summary: This paper presents evidence for the hydrodynamic origin of chaos in maximally chaotic systems and discusses the hallmarks of such systems, including the suppression of exponential growth in commutator squares of generic few-body operators. The study suggests that the nature of operator scrambling in maximally chaotic systems is fundamentally different from non-maximally chaotic systems. Additionally, the paper explores a scenario for the existence of a maximally chaotic regime in non-maximally chaotic systems at sufficiently large distances.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Mohsen Alishahiha, Amin Faraji Astaneh, Ali Naseh
Summary: By employing the extended island formula, we computed the entanglement entropy of Hawking radiation for black hole solutions of certain gravitational models containing higher derivative terms. Our results showed that despite the non-unitarity of the corresponding gravitational models, the entropy followed the Page curve, thanks to the contribution of the island.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Sourav Roychowdhury, Dibakar Roychowdhury
Summary: In this study, we compute the spin 2 spectrum associated with massive graviton fluctuations in a-y-deformed Gaiotto-Maldacena background. This spectrum is holographically dual to the marginal deformations of N = 2 SCFTs in four dimensions. By analytically estimating the spectra for both the-y-deformed Abelian T dual (ATD) and non-Abelian T dual (NATD) cases, we find a continuous spectra associated with the breaking of U(1) isometry in the presence of the-y deformation. We also discuss the effects of adding flavour branes and the nature of the associated spin 2 operators in the dual N = 1 SCFTs.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Igal Arav, Jerome P. Gauntlett, Matthew M. Roberts, Christopher Rosen
Summary: The study constructs a family of AdS(4)x S(1)x S-5 S-fold solutions exhibiting nontrivial SL(2, Z) monodromy in the S-1 direction, which preserve a certain degree of supersymmetry under specified conditions. These solutions are related to N = 4 S-fold SCFT and N = 2 S-fold scenerios. Additionally, the research shows RG flows across dimensions and explores relationships between AdS(5) duals and various SCFTs.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Lucia Castells-Tiestos, Jorge Casalderrey-Solana
Summary: This study investigates the production of gravitational waves by a thermalized plasma of N=4 Supersymmetric Yang Mills matter. The spectrum of gravitational waves is computed for different values of the coupling constant lambda, revealing qualitative and quantitative similarities between the strong coupling spectrum and the extrapolation of the perturbative results.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Mark Van Raamsdonk, Chris Waddell
Summary: The study focuses on solutions of type IIB string theory dual to N = 4 supersymmetric Yang-Mills theory, showing that the ETW brane can be pushed arbitrarily far to recover the missing half of Poincare AdS(5)xS(5). Additionally, it is demonstrated that there are 3D SCFTs whose dual includes a wedge of Poincare AdS(5)xS(5) with an angle close to pi.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Nuclear
Michael F. Wondrak, Matthias Kaminski, Marcus Bleicher
Summary: The study illustrates that the shear viscosity of QCD matter in ultrarelativistic heavy-ion collisions initially decreases to below 60% during the initial heating phase, followed by an overshoot to 110%. This finding is crucial for extracting transport coefficients from anisotropic flow measurements at RHIC and LHC.
Article
Physics, Particles & Fields
Markus Garbiso, Matthias Kaminski
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Navid Abbasi, Matthias Kaminski
Summary: This study investigates the importance of gapped poles of scalar operators for non-hydrodynamic quasinormal modes, and explores the relationships between pole-skipping points, critical points, and quasinormal modes by varying the mass. The results reveal a close connection between critical points and pole-skipping points, and show that these findings hold true for gapped modes of vector and tensor operators as well.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Casey Cartwright, Benjamin Harms, Matthias Kaminski
Summary: This study reports analytically known states at non-zero temperature that can reveal common topological and thermodynamic properties of various systems. Using holographically dual gravity theory, these states are shown to be analytic solutions dynamically coupled to Einstein gravity. The solutions are fully backreacted asymptotically Anti-de Sitter (AdS) black branes or holes, and have significant effects on deconfinement phase transition in the holographically dual field theory. Additionally, rotating black branes are provided in the solutions, inducing states with propagating charge density waves in the dual field theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Martin Ammon, Sebastian Grieninger, Juan Hernandez, Matthias Kaminski, Roshan Koirala, Julian Leiber, Jackson Wu
Summary: In this study, we constructed a general hydrodynamic description of three-dimensional chiral charged quantum fluids under a strong external magnetic field using effective field theory methods. By deriving constitutive equations and Kubo formulas, we identified four novel transport effects and explicitly calculated all transport coefficients in a strongly coupled quantum fluid via holography.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Yago Ferreiros, Karl Landsteiner
Summary: Geometric torsion does not result in new chiral dissipationless transport effects, but rather can be seen as a manifestation of the chiral vortical effect.
Article
Physics, Particles & Fields
Masaru Hongo, Xu-Guang Huang, Matthias Kaminski, Mikhail Stephanov, Ho-Ung Yee
Summary: By utilizing the second law of local thermodynamics and the first-order Palatini formalism, this study formulates relativistic spin hydrodynamics for quantum field theories with Dirac fermions in a curved torsionful background. The model treats spin density as an independent degree of freedom in an extended hydrodynamic description, with only three non-hydrodynamic modes corresponding to a spin vector. Linear response theory is used to observe mode mixing phenomena between transverse shear and spin density modes, with proposed field-theoretical methods to compute spin relaxation time and rotational viscosity.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Daniel Arean, Matteo Baggioli, Sebastian Grieninger, Karl Landsteiner
Summary: In this study, the hydrodynamic excitations of backreacted holographic superfluids are examined by computing quasinormal modes (QNMs) and comparing them to existing hydrodynamic theory. The behavior of low-energy excitations in real frequency and complex momentum is analyzed beyond the standard QNM picture. Additionally, a novel analysis of the model is conducted by determining the support of hydrodynamic modes across the phase diagram, reconstructing hydrodynamic dispersion relations using constitutive relations. The study also rules out a role-reversal phenomenon between first and second sound in this model, contrary to weakly coupled field theory framework results.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Review
Physics, Multidisciplinary
Maxim N. Chernodub, Yago Ferreiros, Adolfo G. Grushin, Karl Landsteiner, Maria A. H. Vozmediano
Summary: This paper reviews the relationship between thermal transport and gravity, and introduces novel concepts related to thermal transport, spacetime geometry, and quantum field theory anomalies. It emphasizes the crosspollination between emerging ideas in condensed matter and the understanding of gravitational and scale anomalies in high-energy physics.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
Sergio Morales-Tejera, Karl Landsteiner
Summary: The recent generalization of the notion of non-Hermitian PT symmetric quantum theory to the gauge/gravity duality is studied. The evolution of these non-Hermitian holographic field theories when the couplings vary with time is examined, with a focus on the distinction between non-unitary and unitary time evolution. It is found that non-unitary time evolution corresponds to a violation of the Null Energy Condition (NEC) in the bulk of the asymptotically AdS spacetime. Additionally, the variations in non-Hermitian coupling lead to a shrinking horizon of a bulk AdS black hole, while variations in Hermitian coupling, in the presence of a constant non-Hermitian coupling, still violate the NEC but result in a growing horizon. It is demonstrated that introducing a non-Hermitian gauge field allows for unitary time evolution, as the NEC is obeyed in the bulk and an exactly equivalent purely Hermitian description can be provided.
Article
Astronomy & Astrophysics
Karl Landsteiner, Sergio Morales-Tejera, Pablo Saura-Bastida
Summary: We derive the chiral transport coefficients for the thermal gas far from the horizon by integrating the anomaly equation in a black hole geometry and imposing vanishing of the covariant current on the horizon. We extend this method to include the usual gauge anomaly for charged black holes and weak magnetic fields, allowing us to derive the full set of transport coefficients describing the chiral magnetic and chiral vortical effects.
Article
Physics, Nuclear
Casey Cartwright, Matthias Kaminski, Bjorn Schenke
Summary: In this study, we used holographic far-from-equilibrium calculation to investigate the chiral magnetic effect (CME) in an expanding quark-gluon plasma. We found that the plasma expansion leads to a dilution of the CME current. Our results suggest that an increasing initial energy is likely to enhance the time-integrated CME current.
Article
Astronomy & Astrophysics
Jewel K. Ghosh, Sebastian Grieninger, Karl Landsteiner, Sergio Morales-Tejera
Summary: The article studies the real-time evolution of the chiral magnetic effect in strongly coupled holographic gauge theories, observing different trends in the change rates of pressure and chiral magnetic current under varying magnetic fields. The findings provide guidance for the realization of the chiral magnetic effect in heavy ion collisions.
Article
Astronomy & Astrophysics
Sergio Morales-Tejera, Karl Landsteiner
Article
Materials Science, Multidisciplinary
Christian Copetti, Karl Landsteiner
