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Physics, Particles & Fields
Alessio Marrani, Anshul Mishra, Prasanta K. Tripathy
Summary: This study focuses on extremal solutions in M-theory compactifications, particularly non-BPS attractors and their relevance to the Weak Gravity Conjecture (WGC). The research explores the explicit expressions and properties of attractor moduli for BPS and non-BPS solutions, as well as calculates black hole entropy and black string tension. The uniqueness of BPS black hole attractors is confirmed, and multiple non-BPS black string attractors are discovered. Additionally, stability analyses are conducted, revealing the stability of non-BPS black strings.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
M. Cvetic, C. N. Pope, A. Saha
Summary: The study presents the construction of the most general BPS black holes of STU supergravity and explores a conformal inversion symmetry. The solutions are parameterized differently, which is conducive to further studies, especially in the moduli space of string theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Niccolo Cribiori, Markus Dierigl, Alessandra Gnecchi, Dieter Luest, Marco Scalisi
Summary: In this paper, black hole solutions parametrized by their entropy S and temperature T in gravitational effective theories are discussed. The analysis of the boundary regions in the T-S diagram, i.e. large/small values of entropy and temperature, and their relation to Swampland constraints is of particular interest. The gravitational theories are coupled with scalar fields to explore the correlation between thermodynamic quantities of black holes and scalar field excursions in the corresponding solutions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Davide Astesiano, Sergio L. Cacciatori, Alessio Marrani
Summary: This study classifies the critical points of the effective black hole potential in N=2, D=4 Maxwell-Einstein supergravity with U(1) Fayet-Iliopoulos gaugings, which governs the attractor mechanism occurring at the horizon of static dyonic extremal black holes. It also investigates various expressions of the entropy of asymptotically AdS(4) BPS black holes under symmetric scalar manifolds.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
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
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
Liang Ma, Yi Pang, H. Lu
Summary: We study the first law of thermodynamics of dyonic black strings carrying linear momentum in type IIA string theory compactified on K3 with alpha' corrections. We find that the naive application of Wald entropy formula leads to two different answers associated with two formulations of the mixed Chern-Simons terms. Neither of them satisfies the first law of thermodynamics for other conserved charges. We resolve this problem by carefully evaluating the full infinitesimal Hamiltonian at both infinity and horizon, and find that an improvement is needed for one of the formulations.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Antonio Amariti, Alessia Segati
Summary: The microstate counting of charged rotating AdS(5) supersymmetric black holes has been reformulated as an extremization problem based on the superconformal index of the corresponding 4d dual SCFT. This approach has been successfully applied to consistent truncations with known field theory dual descriptions. In this paper, the case of the Leigh-Strassler fixed point is studied, and agreement between the field theory and gravitational results is found.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Monserrat Aguayo, Ankai Hernandez, Jose Mena, Julio Oliva, Marcelo Oyarzo
Summary: In this paper, a new family of black holes and solitons is identified, which allows for exact integration of scalar probes even with a non-minimal coupling with the Ricci scalar. The discrete modes on these geometries are independent of the radius of the black hole and can be integrated using hypergeometric functions to obtain exact expressions for the frequencies.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Subhroneel Chakrabarti, Suresh Govindarajan, P. Shanmugapriya, Yogesh K. Srivastava, Amitabh Virmani
Summary: This paper extends previous studies on black hole hair modes in N = 4 CHL orbifold models, identifying characteristics of these modes and achieving consistency in microscopic analysis.
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
Fabrizio Canfora, Julio Oliva, Marcelo Oyarzo
Summary: In this paper, we revisit the problem of finding BPS solutions in N = 4 SU (2) x SU (2) gauged supergravity. We report a new supersymmetric solution in the Abelian sector and a new solution whose supersymmetric nature was overlooked in the previous literature. Moving to the non-Abelian sector, we construct electric-meronic and double-meron solutions, which lead to singular 1/4 BPS configurations. We also modify the self-interaction of the scalar and construct exact black holes with interesting causal structures and asymptotic behavior.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
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
Georgios K. Karananas, Alex Kehagias, John Taskas
Summary: A novel four-dimensional black hole model is proposed, with expected growth of entanglement entropy before Page's time, but later modified significantly by emergent islands, leading to saturation at a finite value. The study reveals that the entanglement entropy changes along the RG flow with respect to the two-dimensional worldsheet length scale.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Guillaume Bossard, Stefanos Katmadas
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(2015)
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Physics, Particles & Fields
Kiril Hristov, Stefanos Katmadas
JOURNAL OF HIGH ENERGY PHYSICS
(2015)
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Physics, Particles & Fields
Stefanos Katmadas, Alessandro Tomasiello
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
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Physics, Particles & Fields
Guillaume Bossard, Stefanos Katmadas, David Turton
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
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Physics, Particles & Fields
Bernard de Wit, Stefanos Katmadas, Maaike van Zalk
JOURNAL OF HIGH ENERGY PHYSICS
(2011)
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Physics, Particles & Fields
Pietro Galli, Kevin Goldstein, Stefanos Katmadas, Jan Perz
JOURNAL OF HIGH ENERGY PHYSICS
(2011)
Article
Physics, Particles & Fields
Guillaume Bossard, Stefanos Katmadas
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Nabamita Banerjee, Bernard de Wit, Stefanos Katmadas
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Guillaume Bossard, Stefanos Katmadas
JOURNAL OF HIGH ENERGY PHYSICS
(2013)
Article
Physics, Particles & Fields
Guillaume Bossard, Stefanos Katmadas
JOURNAL OF HIGH ENERGY PHYSICS
(2013)
Article
Physics, Particles & Fields
Kiril Hiristov, Stefanos Katmadas, Valentina Pozzoli
JOURNAL OF HIGH ENERGY PHYSICS
(2013)
Article
Physics, Particles & Fields
Guillaume Bossard, Stefanos Katmadas
JOURNAL OF HIGH ENERGY PHYSICS
(2014)
Article
Physics, Particles & Fields
Stefanos Katmadas, Ruben Minasian
JOURNAL OF HIGH ENERGY PHYSICS
(2014)
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Physics, Particles & Fields
S. Katmadas, D. Ruggeri, M. Trigiante, T. Van Riet
JOURNAL OF HIGH ENERGY PHYSICS
(2019)