226 citations · 493 across the 31 of their papers we have counts for
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Constructing black hole entropy from gravitational collapse
Giovanni Acquaviva, George F. R. Ellis, Rituparno Goswami +1
Based on a recent proposal for the gravitational entropy of free gravitational fields, we investigate the thermodynamic properties of black hole formation through gravitational col…
Nonlinear bulk viscosity and the stability of accelerated expansion in FRW spacetime
G. Acquaviva, A. Beesham
In the context of dark energy solutions, we consider a Friedmann-Robertson-Walker spacetime filled with a non-interacting mixture of dust and a viscous fluid, whose bulk viscosity…
Vacuum fluctuation of conformally coupled scalar field in FLRW space-times
Giovanni Acquaviva, Luca Bonetti, Luciano Vanzo +1
The regularized vacuum fluctuation related to a conformally coupled massless scalar field defined on a space-time with dynamical horizon is computed with respect a radially moving…