Quenches and lattice simulators for particle creation
General Relativity and Quantum Cosmology
2013-02-12 v2 Other Condensed Matter
High Energy Physics - Theory
Quantum Physics
Abstract
In this paper we propose a framework for simulating thermal particle production in condensed matter systems. The procedure we describe can be realized by means of a quantum quench of a parameter in the model. In order to support this claim, we study quadratic fermionic systems in one and two dimensions by means of analytical and numerical techniques. In particular, we are able to show that a class of observables associated to Unruh--de Witt detectors are very relevant for this type of setup and that exhibit approximate thermalization.
Cite
@article{arxiv.1212.1981,
title = {Quenches and lattice simulators for particle creation},
author = {Francesco Caravelli and Fotini Markopoulou and Arnau Riera and Lorenzo Sindoni},
journal= {arXiv preprint arXiv:1212.1981},
year = {2013}
}
Comments
12 pages double column, 7 figures (several clarifications, typos corrected and reference added in v2)