[كتاب][B] Horizons

V Faraoni, V Faraoni - 2015‏ - Springer
This chapter reviews standard tools used in the analysis of horizon and black hole physics,
most notably the congruences of null geodesics crossing a horizon. Rindler, event, Killing …

Fresh look at the scalar-tensor theory of gravity in Jordan and Einstein frames from undiscussed standpoints

K Bhattacharya, BR Majhi - Physical Review D, 2017‏ - APS
We study the scalar-tensor theory of gravity profoundly in the action level as well as in the
thermodynamic level. Contrary to the usual description in the literature about the …

Beyond lensing by the cosmological constant

V Faraoni, M Lapierre-Léonard - Physical Review D, 2017‏ - APS
The long-standing problem of whether the cosmological constant affects directly the
deflection of light caused by a gravitational lens is reconsidered. We use a new approach …

Hawking–Hayward quasi-local energy under conformal transformations

A Prain, V Vitagliano, V Faraoni… - … and Quantum Gravity, 2016‏ - iopscience.iop.org
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Temperature and thermodynamic structure of Einstein's equations for a cosmological black hole

K Bhattacharya, BR Majhi - Physical Review D, 2016‏ - APS
It is expected that the cosmological black holes are the closest realistic solutions of
gravitational theories and they evolve with time. Moreover, the natural way of defining …

On the resilience of black hole evaporation: gravitational tunneling through universal horizons

M Schneider, F Del Porro… - Journal of Physics …, 2023‏ - iopscience.iop.org
Using a quantum tunneling derivation, we show the resilience of Hawking radiation in
Lorentz violating gravity. In particular, we show that the standard derivation of the Hawking …

Quasilocal energy in modified gravity

V Faraoni - Classical and Quantum Gravity, 2015‏ - iopscience.iop.org
A new generalization of the Hawking–Hayward quasilocal energy to scalar–tensor gravity is
proposed without assuming symmetries, asymptotic flatness, or special spacetime metrics …

Conformal cosmological black holes: Towards restoring determinism to Einstein theory

F Hammad, DK Ciftci, V Faraoni - The European Physical Journal …, 2019‏ - epjplus.epj.org
A widespread solution-generating technique of general relativity consists of conformally
transforming known “seed” solutions. It is shown that these new solutions always solve the …

More on the conformal map** of quasi-local masses: the Hawking–Hayward case

F Hammad - Classical and Quantum Gravity, 2016‏ - iopscience.iop.org
The conformal transformation of the Hawking–Hayward quasi-local mass is re-examined. It
has been found recently that the conformal transformation of the latter exhibits …

Quantum effects across dynamical horizons

C Giavoni, M Schneider - Classical and Quantum Gravity, 2020‏ - iopscience.iop.org
We present a generalization of the Hawking effect for dynamical trap** horizons by
calculating the tunneling rate in the Hamilton–Jacobi formalism. It turns out that all horizons …