Scalar quantum fields in cosmologies with 2+1 spacetime dimensions
General Relativity and Quantum Cosmology
2022-06-22 v2 Quantum Gases
Abstract
Motivated by the possibility to use Bose-Einstein condensates as quantum simulators for spacetime curvature, we study a massless relativistic scalar quantum field in spatially curved Friedmann-Lema\^itre-Robertson-Walker universes with spacetime dimensions. In particular, we investigate particle production caused by a time-dependent background geometry, by means of the spectrum of fluctuations and several two-point field correlation functions. We derive new analytical results for several expansion scenarios.
Cite
@article{arxiv.2202.10440,
title = {Scalar quantum fields in cosmologies with 2+1 spacetime dimensions},
author = {Natalia Sánchez-Kuntz and Álvaro Parra-López and Mireia Tolosa-Simeón and Tobias Haas and Stefan Floerchinger},
journal= {arXiv preprint arXiv:2202.10440},
year = {2022}
}
Comments
17 pages, 6 figures