Thermodynamic Metrics and Black Hole Physics [PDF]
Entropy, 2015 We give a brief survey of thermodynamic metrics, in particular the Hessian of the entropy function, and how they apply to black hole thermodynamics. We then provide a detailed discussion of the Gibbs surface of Kerr black holes. In particular, we analyze
Jan E. Åman +2 more
doaj +5 more sources
Distinguishing gravitational and emission physics in black hole imaging: spherical symmetry [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 Imaging a supermassive black hole and extracting physical information requires good knowledge of both the gravitational and the astrophysical conditions near the black hole.
Prashant Kocherlakota +1 more
exaly +2 more sources
Carrollian physics at the black hole horizon [PDF]
Classical and Quantum Gravity, 2019 We show that the geometry of a black hole horizon can be described as a Carrollian geometry emerging from an ultra-relativistic limit where the near-horizon radial coordinate plays the role of a virtual velocity of light tending to zero.
L. Donnay, Charles Marteau
semanticscholar +5 more sources
Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole [PDF]
Symmetry, 2020 We study a quantum-corrected Schwarzschild black hole proposed recently in Loop Quantum Gravity. Prompted by the fact that corrections to the innermost stable circular orbit of Schwarzschild diverge, we investigate time-like and null radial geodesics ...
Valerio Faraoni, Andrea Giusti
exaly +2 more sources
Coexistent physics and microstructure of the regular Bardeen black hole in anti-de Sitter spacetime [PDF]
Annals of Physics, 2020 We study the phase structure and the microscopic interactions in regular Bardeen AdS black hole. The stable and metastable phases in the black hole are analysed through coexistence and spinodal curves.
Naveena Kumara A +2 more
exaly +2 more sources
The Measurement Problem in the Thermodynamics of Black Holes [PDF]
EntropyThis manuscript gives a solution to the black hole information paradox by bringing to the debate a fundamental aspect of information science: the process of measurement by a receiver.
Jeroen Schoenmaker
doaj +2 more sources
Hyperboloidal approach for static spherically symmetric spacetimes: a didactical introduction and applications in black-hole physics [PDF]
Philosophical Transactions of the Royal Society A, 2023 This work offers a didactical introduction to the calculations and geometrical properties of a static, spherically symmetric spacetime foliated by hyperboloidal time surfaces. We discuss the various degrees of freedom involved, namely the height function,
Rodrigo Panosso Macedo
semanticscholar +1 more source
Probing QCD critical point and induced gravitational wave by black hole physics [PDF]
Physical Review D, 2022 Locating the critical endpoint of QCD and the region of a first-order phase transition at finite baryon chemical potential is an active research area for QCD matter.
Rong-Gen Cai +3 more
semanticscholar +1 more source
The third law of thermodynamics, non-extensivity and energy definition in black hole physics [PDF]
Modern Physics Letters A, 2021 Working in the framework of generalized statistics, the problem of establishing third law of thermodynamics in the black hole physics is studied by focusing on Schwarzschild black hole which easily and clearly exposes the violation of this law in the ...
H. Moradpour +5 more
semanticscholar +1 more source
Black Hole Images as Tests of General Relativity: Effects of Plasma Physics [PDF]
Astrophysical Journal, 2021 The horizon-scale images of black holes obtained with the Event Horizon Telescope have provided new probes of their metrics and tests of general relativity.
F. Özel, D. Psaltis, Z. Younsi
semanticscholar +1 more source