3 citations · 14 across the 11 of their papers we have counts for
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Singularity resolution and unitarity in two-dimensional dilaton black holes with negative central charge
César García-Pérez, F. Javier Marañón-González, José Navarro-Salas +1
We study a one-loop corrected extension of the classical Callan-Giddings-Harvey-Strominger (CGHS) model of two-dimensional dilaton gravity. The effective action combines the non-lo…
Renormalization and a non-adiabatic vacuum choice in a radiation-dominated universe
Pau Beltrán-Palau, Sergi Nadal-Gisbert, José Navarro-Salas +1
Vacuum and particles can be naturally defined in the adiabatic regime of an expanding universe. In general, however, there is no preferred choice of a vacuum state, unless the spac…
R-summed form of adiabatic expansions in curved spacetime
Antonio Ferreiro, Jose Navarro-Salas, Silvia Pla
The Feynman propagator in curved spacetime admits an asymptotic (Schwinger-DeWitt) series expansion in derivatives of the metric. Remarkably, all terms in the series containing the…
Adiabatic regularization with a Yukawa interaction
Antonio Ferreiro, Adrian del Rio, Jose Navarro-Salas +2
We extend the adiabatic regularization method for an expanding universe to include the Yukawa interaction between a quantized Dirac field and a homogeneous time-dependent scalar fi…
Pair creation in electric fields, renormalization, and backreaction
Antonio Ferreiro, Jose Navarro-Salas, Silvia Pla
We consider pair production phenomena in spatially homogeneous strong electric fields. We focus on spinor QED in two-dimensions and discuss the potential ambiguity in the adiabatic…
Role of gravity in the pair creation induced by electric fields
Antonio Ferreiro, Jose Navarro-Salas, Silvia Pla
We analyze the pair production induced by homogenous, time-dependent electric fields in an expanding space-time background. We point out that, in obtaining the semiclassical Maxwel…