Energy transfer and thermodynamics of quantum gravity computation

Gyöngyösi, László

doi:10.1016/j.csfx.2020.100050

Cited by 1 publication

(2 citation statements)

References 96 publications

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“…where in the first step we have used Equation (7), in the second one the definition of the affine connection in GR,…”

Section: Killing Equation In a Conformally Flat Metricmentioning

confidence: 99%

“…On the one hand, accepting the standard scenario dictated by GR seems in fact to imply a non-unitary evolution of quantum states, so violating a basic tenet of QFT. On the other hand, avoiding this loss of unitarity seems to require a radical departure from the equivalence principle that would predict no radical departure from standard physics at the event horizon of the black hole (see e.g., the so-called firewall paradigm proposed in [2][3][4][5][6][7] for quantum entropy and information evaporation from black holes).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Black Hole Surface Gravity in Doubly Special Relativity Geometries

Relancio

Liberati

2022

Universe

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In a quantum gravity theory, spacetime at mesoscopic scales can acquire a novel structure very different from the classical concept of general relativity. A way to effectively characterize the quantum nature of spacetime is through a momentum dependent space-time metric. There is a vast literature showing that this geometry is related to relativistic deformed kinematics, which is precisely a way to capture residual effects of a quantum gravity theory. In this work, we study the notion of surface gravity in a momentum dependent Schwarzschild black hole geometry. We show that using the two main notions of surface gravity in general relativity we obtain a momentum independent result. However, there are several definitions of surface gravity, all of them equivalent in general relativity when there is a Killing horizon. We show that in our scheme, despite the persistence of a Killing horizon, these alternative notions only agree in a very particular momentum basis, obtained in a previous work, so further supporting its physical relevance.

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“…where in the first step we have used Equation (7), in the second one the definition of the affine connection in GR,…”

Section: Killing Equation In a Conformally Flat Metricmentioning

confidence: 99%