191 citations · 628 across the 20 of their papers we have counts for
4 papers · 1 filter
Decoherence, tunneling and noise-activation in a double-potential well at high and zero temperature
Nuno D. Antunes, Fernando C. Lombardo, Diana Monteoliva +1
We study the effects of the environment on tunneling in an open system described by a static double-well potential. We describe the evolution of a quantum state localized in one of…
Domain Formation: Decided Before, or After the Transition?
Nuno D. Antunes, Pedro Gandra, Ray J. Rivers
There is increasing evidence that causality provides useful bounds in determining the domain structure after a continuous transition. In devising their scaling laws for domain size…
The role of dissipation in biasing the vacuum selection in quantum field theory at finite temperature
F. Freire, N. D. Antunes, P. Salmi +1
We study the symmetry breaking pattern of an O(4) symmetric model of scalar fields, with both charged and neutral fields, interacting with a photon bath. Nagasawa and Brandenberger…
The Effects of Multiplicative Noise in Relativistic Phase Transitions
Nuno D. Antunes, Pedro Gandra, Ray J. Rivers
Effective stochastic equations for the continuous transitions of relativistic quantum fields inevitably contain multiplicative noise. We examine the effect of such noise in a numer…