Feynman diagram approach to dynamical Casimir effect in optimechanical
cavity
- URL: http://arxiv.org/abs/2103.10657v2
- Date: Fri, 8 Oct 2021 13:44:43 GMT
- Title: Feynman diagram approach to dynamical Casimir effect in optimechanical
cavity
- Authors: Yu-Song Cao, Yanxia Liu
- Abstract summary: We study an optomechnical system enclosed by an optical cavity with one mirror attached to a spring as a closed quantum system.
We provide a different angle of studying the phenomenons related to the dynamical Casimir effect via Feynman diagram technique.
- Score: 0.9790236766474201
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In this paper we study an optomechnical system enclosed by an optical cavity
with one mirror attached to a spring as a closed quantum system. We provide a
different angle of studying the phenomenons related to the dynamical Casimir
effect via Feynman diagram technique. Dressing effects of phonon, photon and
coupling strength are discussed. The energy shift of ground state is obtained.
The dynamical Casimir effect is modeled by the scattering processes converting
phonons to photons and the corresponding scattering amplitudes are computed.
The force-force correlation function of the radiation pressure is derived,
whose non-Gaussian probability distribution is revealed.
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