Article
Physics, Particles & Fields
Federico Faedo, Silke Klemm, Adriano Vigano
Summary: The study uses a specific method to find new half-BPS near-horizon geometries in the N = 2, D = 4 gauged supergravity model, including black hole solutions with noncompact and spherical horizons. These new solutions may provide interesting testgrounds for addressing fundamental questions related to quantum gravity and holography.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Praxitelis Ntokos, Ioannis Papadimitriou
Summary: In this study, an effective superpotential formalism was developed for the SU(2)xU(1) invariant sector of N = 2 gauged supergravity in five dimensions, providing the exact superpotential for all 1/4 BPS solutions in this sector. By utilizing the superpotential, the thermodynamics, conserved charges, and supersymmetry properties of the solutions were analyzed, leading to the discovery of a unifying entropy extremization principle. The study also demonstrated the first law for black holes in this sector and confirmed the generalized BPS relation derived from supersymmetric solutions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Seyed Morteza Hosseini, Kiril Hristov
Summary: The study discusses the reduction of 6d matter-coupled F(4) supergravity on a compact Riemann surface Sigma g, resulting in an N = 2 gauged supergravity model. Static dyonic black holes in AdS(6) were successfully constructed, and new solutions for the 4d theory were discovered.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Marina David, Junho Hong, Rishi Mouland
Summary: We construct a solution for a seven-dimensional black hole with three angular momenta and two electric charges. It describes the effects of rotating M5-brane in 11-dimensional supergravity. We analyze the thermodynamic properties of the black hole and find that in the supersymmetric limit, its entropy and on-shell action agree precisely with the result of the path integral of the holographically dual 6D N=(2,0) SCFT to leading order in the large N limit.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Sudip Karan, Gurmeet Singh Punia
Summary: In this paper, we calculate the logarithmic correction to the entropy of asymptotically flat and AdS black holes embedded in Einstein-Maxwell-dilaton (EMD) theories with U(1)-charged. Both extremal and non-extremal limits of black hole temperature are considered, and the leading quantum gravitational corrections are achieved by evaluating the logarithmic term from one-loop effective actions. The results are non-topological for AdS4, providing a wider infrared window into the microscopic degrees of freedom of black holes in string theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Christopher Couzens, Eric Marcus, Koen Stemerdink, Damian van de Heisteeg
Summary: We classify the necessary and sufficient conditions to obtain the near-horizon geometry of extremal supersymmetric rotating black holes embedded in 11d supergravity associated to rotating M2-branes. The conditions for supersymmetry are rewritten in terms of differential equations on an eight-dimensional balanced space using G-structure techniques. The geometry is constrained by a master equation reminiscent of the non-rotating case, and the asymptotically AdS(4) electrically charged Kerr-Newman black hole in 4d N = 2 supergravity is embedded in the classification. Additionally, the conditions for the near-horizon geometry of rotating black strings in Type IIB are presented using dualities with the 11d setup.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Koji Hashimoto, Ryota Watanabe
Summary: This paper presents a formula to reconstruct bulk spacetime metrics inside black holes by studying the time dependence of complexity in the dual quantum field theory, based on the complexity=volume (CV) conjecture in holographic duality.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Tanay Kibe, Sukrut Mondkar, Ayan Mukhopadhyay, Hareram Swain
Summary: This study explores how the black hole complementarity principle can arise from quantum gravitational dynamics using a local semiclassical approximation. The findings suggest that the decoupling of different degrees of freedom is crucial for replicating infalling information without cloning it. The study also reveals that hair, which retains a residual time-dependent quantum state, can mirror infalling information after a decoupling time.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Review
Astronomy & Astrophysics
Yolanda Lozano, Anayeli Ramirez
Summary: This study reviews recent developments in the study of the AdS/CFT correspondence in lower dimensions, covering the classification of AdS(3) x S-2 solutions, construction of 2D dual quiver CFTs, new classes of AdS3 solutions in M-theory and AdS(2)xS(3) solutions in various supergravity theories. The explicit dual quiver field theories provided in the study are used to compute central charges of the CFTs and demonstrate their agreement with holographic expressions.
Article
Physics, Particles & Fields
Bidisha Chakrabarty, Sami Rawash, David Turton
Summary: This paper constructs asymptotically flat supersymmetric three-charge microstate solutions that contain shockwaves. The holographically dual states of the D1-D5 CFT are identified and shown to pass a set of tests, including a precision holographic test, with precise agreement between gravity and CFT. These results may be useful for constructing more general families of black hole microstate solutions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Julian Barragan Amado, Bruno Carneiro da Cunha, Elisabetta Pallante
Summary: The study investigates the low-temperature limit of scalar perturbations of Kerr-AdS(5) black holes for generic rotational parameters, finding that the fundamental mode is perturbatively stable at low temperatures while excited perturbations exhibit superradiance. Numerical analysis was performed on the low-lying frequencies, and the holographic interpretation of unstable modes and decaying processes was considered in the conclusion.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
D. Rodriguez-Gomez, J. G. Russo
Summary: The thermal 2-point correlation functions in the black brane AdS(5) background dual to 4d CFT's at finite temperature for operators of large scaling dimension were computed. A formula matching the expected structure of the OPE was found, showing an exponentiation property whose origin was explained. Additionally, the first correction to the two-point function due to graviton emission, encoding the proper time from the event horizon to the black hole singularity, was computed.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Suvendu Giri
Summary: In this paper, we construct AdS(4) x Sigma and AdS(2) x Sigma x Sigma(g) solutions in six-dimensional F(4) gauged supergravity. The first solution realizes a topologically topological twist, while the second class of solutions gives rise to an anti twist. We compute the holographic free energy of the AdS(4) x Sigma solution and find that it matches the entropy computed by extremizing an entropy functional that is constructed by gluing gravitational blocks. For the AdS(2) x Sigma x Sigma(g) solution, we find that the Bekenstein-Hawking entropy is reproduced by extremizing an appropriately defined entropy functional, which leads us to conjecture that this solution is dual to a three-dimensional SCFT on a spindle. A class of the AdS(2) x Sigma x Sigma(g) solutions can be embedded in four-dimensional T-3 gauged supergravity, which is a subtruncation of the six-dimensional theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Sunjin Choi, Seok Kim, Eunwoo Lee, Jehyun Lee
Summary: In this study, we investigate the properties of AdS5 black holes using a recently proposed giant graviton expansion formula for the index of U(N) maximal super-Yang-Mills theory. By performing a saddle point analysis and maximizing the large N entropy at fixed charges and giant graviton numbers nI, we obtain consistent results with the dual black hole entropy in the small black hole limit. We also provide an explanation for the dual black hole entropy at general sizes by assuming a cancellation mechanism for various giant graviton indices.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Brett McInnes
Summary: There has been a recent resurgence of interest in quasi-extremal magnetically charged black holes with interesting properties in the asymptotically AdS case. The holographic duality suggests that the dual theory is only physical if the black hole is required to rotate, leading to various unique characteristics of these black holes. While the magnetically charged black holes can avoid a certain instability that neutral AdS-Kerr black holes face, there are also limitations imposed on the magnetic and electric fields in order to prevent this instability.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Kiril Hristov, Stefanos Katmadas, Chiara Toldo
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Seyed Morteza Hosseini, Kiril Hristov, Alberto Zaffaroni
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Kiril Hristov, Ivano Lodato, Valentin Reys
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Multidisciplinary
Nikolay Bobev, Anthony M. Charles, Kiril Hristov, Valentin Reys
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Particles & Fields
Seyed Morteza Hosseini, Kiril Hristov, Yuji Tachikawa, Alberto Zaffaroni
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Seyed Morteza Hosseini, Kiril Hristov
Summary: The study discusses the reduction of 6d matter-coupled F(4) supergravity on a compact Riemann surface Sigma g, resulting in an N = 2 gauged supergravity model. Static dyonic black holes in AdS(6) were successfully constructed, and new solutions for the 4d theory were discovered.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Anthony M. Charles, Dongmin Gang, Kiril Hristov, Valentin Reys
Summary: This study investigates the interplay between four-derivative 4d gauged supergravity, holography, wrapped M5-branes, and theories of class R. By using results from Chern-Simons theory and the 3d-3d correspondence, the study constrains the coefficients in the four-derivative supergravity Lagrangian and calculates the subleading terms in the large-N expansion of partition functions for a class of three-dimensional N = 2 SCFTs of class R. Additionally, the study determines the leading correction to the Bekenstein-Hawking entropy of black holes and proposes conjectures about the perturbative partition function of Chern-Simons theory on closed hyperbolic three-manifolds with complexified ADE gauge groups.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Anthony M. Charles, Kiril Hristov, Valentin Reys
Summary: Utilizing conformal supergravity techniques, this study explores four-derivative corrections in four-dimensional gauged supergravity. The four-derivative Lagrangian for the N=2 gravity multiplet's propagating degrees of freedom is shown to be determined by two real dimensionless constants, with all solutions of the two-derivative equations of motion also solving the four-derivative equations of motion. The study also provides explicit calculations of the effects of four-derivative terms on black hole solutions and expands the results to include matter multiplets in the presence of higher-derivative terms.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Seyed Morteza Hosseini, Kiril Hristov, Alberto Zaffaroni
Summary: This study constructed generalizations of AdS(3) x M-7 type IIB vacua, specifically focusing on electrically charged and rotating supersymmetric black strings in AdS(5) x S-5 with general magnetic fluxes on a spindle. The counting of microstates was performed using the charged Cardy formula, and the general form of the anomaly polynomial of the dual N = (0, 2) CFT in two dimensions was derived and obtained via a simple gluing procedure.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Kiril Hristov, Valentin Reys
Summary: The study derives the general form of one-loop corrections to observables in asymptotically AdS(4) supersymmetric backgrounds of abelian gauged supergravity using the Atiyah-Singer index theorem. It proposes a general fixed-point formula for the logarithmic corrections based on simple topological data and a single dynamical coefficient that uniquely determine these corrections.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Kiril Hristov
Summary: We reinterpret the OSV formula for the on-shell action/entropy function of asymptotically flat BPS black holes as a fixed point formula that is formally equivalent to a recent gluing proposal for asymptotically AdS(4) black holes. This prompts a conjecture that the complete perturbative answer for the most general gravitational building block of 4d N = 2 supergravity at a single fixed point takes the form of a Nekrasov-like partition function with equivariant parameters related to the higher-derivative expansion of the prepotential. In turn this leads to a simple localization-like proposal for a set of supersymmetric partition functions in (UV completed) 4d N = 2 supergravity theories.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Nikolay Bobev, Kiril Hristov, Valentin Reys
Summary: In this study, we investigate four-derivative corrections to 5d N = 2 minimal gauged supergravity using tools from conformal supergravity. We identify two supersymmetric invariants and construct the action in the Poincare frame in terms of their coefficients. Applying these results in holography, we find that the four-derivative terms in the supergravity action lead to corrections in the conformal anomalies of the dual 4d N = 1 SCFT. We also analyze the corrections to the entropy of supersymmetric black string solutions and discuss the explicit embeddings of 5d supergravity in string and M-theory to determine the higher-derivative coefficients in terms of microscopic parameters.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Kiril Hristov
Summary: In this study, we apply the conjecture of gravitational building blocks to analyze M-theory on S-7/Z(k). By utilizing the known localization results for the holographically dual ABJM theory, we determine higher derivative corrections to the AdS(4) supergravity, quantum corrections, and predict ABJM observables using the uniquely fixed gravitational block.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Kiril Hristov
Summary: We explore the BPS limit of asymptotically flat black hole thermodynamics and find analogies with black holes in anti-de Sitter space. We consider specific models in pure Einstein-Maxwell theory and find that the BPS limit is classically well-defined, different from extremality, and allows the evaluation of all BPS chemical potentials.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Kiril Hristov, Stefanos Katmadas, Chiara Toldo