193 citations · 722 across the 21 of their papers we have counts for
10 papers · 1 filter
Vacuum polarization throughout general subtracted black hole spacetimes
Alejandro Satz, Mirjam Cvetic
We compute the vacuum polarization of a massless minimally co pled scalar field in a background given by a black hole with subtracted geometry. Extending previous results for the h…
On the renormalization of the Gibbons-Hawking boundary term
Ted Jacobson, Alejandro Satz
The bulk (Einstein-Hilbert) and boundary (Gibbons-Hawking) terms in the gravitational action are generally renormalized differently when integrating out quantum fluctuations. The f…
Mechanical laws of the Rindler horizon
Eugenio Bianchi, Alejandro Satz
Gravitational perturbations of flat Minkowski space make the Rindler horizon dynamical: the horizon satisfies mechanical laws analogous to the ones followed by black holes. We desc…
Semiclassical regime of Regge calculus and spin foams
Eugenio Bianchi, Alejandro Satz
Recent attempts to recover the graviton propagator from spin foam models involve the use of a boundary quantum state peaked on a classical geometry. The question arises whether bey…
Transition rate of the Unruh-DeWitt detector in curved spacetime
Jorma Louko, Alejandro Satz
We examine the Unruh-DeWitt particle detector coupled to a scalar field in an arbitrary Hadamard state in four-dimensional curved spacetime. Using smooth switching functions to tur…
A new expression for the transition rate of an accelerated particle detector
J. Louko, A. Satz
We analyse the instantaneous transition rate of an accelerated Unruh-DeWitt particle detector whose coupling to a quantum field on Minkowski space is regularised by a finite spatia…