Results 11 to 20 of about 458,070 (185)
Entropy Product Formula for Gravitational Instanton [PDF]
Advances in High Energy Physics, 2017 We investigate the entropy product formula for various gravitational instantons. We speculate that due to the mass-independent features of the said instatons they are universal as well as quantized.
Parthapratim Pradhan
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Cornering gravitational entropy [PDF]
Journal of High Energy PhysicsWe present a new derivation of gravitational entropy functionals in higher-curvature theories of gravity using corner terms that are needed to ensure well-posedness of the variational principle in the presence of corners.
Jani Kastikainen, Andrew Svesko
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From entropy to gravitational entropy
, 2023 The concept of entropy forms the backbone of the principles of thermodynamics. R.C. Tolman initiated the correlation between gravity and thermodynamics. The development of black hole thermodynamics and the generalized second law of thermodynamics led to Penrose's conjecture that the Weyl tensor should serve as a measure of the entropy of the free ...
Guha, Sarbari
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Entropy and topology for gravitational instantons [PDF]
Physical Review D, 1997 In this work a relation between topology and thermodynamical features of gravitational instantons is shown. The expression for the Euler characteristic, through the Gauss-Bonnet integral, and the one for the entropy of gravitational instantons are proposed in a form that makes the relation between them self-evident.
Liberati, Stefano, GIUSEPPE POLLIFRONE
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Generalized gravitational entropy of interacting scalar field and Maxwell field
Physics Letters B, 2014 The generalized gravitational entropy proposed recently by Lewkowycz and Maldacena is extended to the interacting real scalar field and Maxwell field system.
Wung-Hong Huang
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Revisit the entanglement entropy with gravitational anomaly [PDF]
Journal of High Energy Physics, 2023 In this paper we study the entanglement entropy in the CFT2, whose gravity dual is AdS3 spacetime with a Chern-Simons term. Using the generalized Rindler method, we obtain the Rindler transformation in the two-dimensional planar CFT and compute the ...
Peng-Zhang He, Hai-Qing Zhang
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Upper and lower bounds on gravitational entropy [PDF]
Journal of Cosmology and Astroparticle Physics, 2008 The gravitational entropy of the Universe is large and subtle to calculate. A lower bound is well known from supermassive black holes at the centers of galaxies, but the remainder is harder to pin down. A parametric model of clumped matter entropy is provided.
Frampton, Paul H., Kephart, Thomas W.
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Gravitational Entropy of Black Holes and Wormholes [PDF]
International Journal of Theoretical Physics, 2011 Pure thermodynamical considerations to describe the entropic evolution of the universe seem to violate the Second Law of Thermodynamics. This suggests that the gravitational field itself has entropy. In this paper we expand recent work done by Rudjord, GrØn and SigbjØrn where they suggested a method to calculate the gravitational entropy in black holes
Romero, Gustavo Esteban +2 more
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The Rate of Entropy Change: Gravitational Effects
Journal of Non-Equilibrium Thermodynamics, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
SCIBONA, Giancarlo +3 more
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Gravitational entropy in black hole transformations
European Physical Journal C: Particles and FieldsThere are several reasons to support the idea that entropy might be associated to gravity itself. In the absence of a quantum theory of gravity, classical estimators for the gravitational entropy have been proposed.
Alan Alejandro Panuco Liñan +3 more
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