25 citations · 135 across the 23 of their papers we have counts for
4 papers · 1 filter
Translational anomaly of chiral fermions in two dimensions
Pau Beltrán-Palau, Jose Navarro-Salas, Silvia Pla
It is well known that a quantized two-dimensional Weyl fermion coupled to gravity spoils general covariance and breaks the covariant conservation of the energy-momentum tensor. In…
Breaking of adiabatic invariance in the creation of particles by electromagnetic fields
Pau Beltrán-Palau, Antonio Ferreiro, Jose Navarro-Salas +1
Particles are spontaneously created from the vacuum by time-varying gravitational or electromagnetic backgrounds. It has been proven that the particle number operator in an expandi…
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…