Stochastic particle creation: from the dynamical casimir effect to cosmology

0569326 - FZÚ 2024 RIV CH eng J - Článek v odborném periodiku
Mantinan, M. - Mazzitelli, F.D. - Trombetta, Leonardo G.
Stochastic particle creation: from the dynamical casimir effect to cosmology.
Entropy. Roč. 25, č. 1 (2023), č. článku 151. E-ISSN 1099-4300
Grant CEP: GA ČR(CZ) GA20-28525S
Institucionální podpora: RVO:68378271
Klíčová slova: dynamical Casimir effect * stochastic particle creation * cosmology
Obor OECD: Particles and field physics
Impakt faktor: 2.7, rok: 2022
Způsob publikování: Open access

We study a stochastic version of the dynamical Casimir effect, computing the particle creation inside a cavity produced by a random motion of one of its walls. We first present a calculation perturbative in the amplitude of the motion. We compare the stochastic particle creation with the deterministic counterpart. Then, we go beyond the perturbative evaluation using a stochastic version of the multiple scale analysis, that takes into account stochastic parametric resonance. We stress the relevance of the coupling between the different modes induced by the stochastic motion. In the single-mode approximation, the equations are formally analogous to those that describe the stochastic particle creation in a cosmological context, that we rederive using multiple scale analysis.
Trvalý link: https://hdl.handle.net/11104/0347985