Microscopic toy model for the cavity dynamical Casimir effect

We develop a microscopic toy model for cavity dynamical Casimir effect (DCE), namely, the photon generation from vacuum due to a nonstationary dielectric slab in a fixed single-mode cavity. We represent the slab by noninteracting two-level atoms coupled to the field via the standard dipole interacti...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. A, Mathematical and theoretical Mathematical and theoretical, 2015-06, Vol.48 (24), p.245302-23
Main Authors: Sousa, I M de, Dodonov, A V
Format: Article
Language:English
Subjects:
anti-dynamical Casimir effect
Architecture
dynamical Casimir effect
Holes
Kerr effect
Mathematical models
Modulation
Nonlinearity
nonstationary circuit QED
photon generation from vacuum
Photons
Qubits (quantum computing)
Slabs
squeezing
toy model
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We develop a microscopic toy model for cavity dynamical Casimir effect (DCE), namely, the photon generation from vacuum due to a nonstationary dielectric slab in a fixed single-mode cavity. We represent the slab by noninteracting two-level atoms coupled to the field via the standard dipole interaction. We show that the DCE is contained implicitly in the light-matter interaction Hamiltonian when its parameters are assumed externally prescribed functions of time. We also predict several new phenomena, such as saturation of the photon growth due to effective Kerr nonlinearity, generation of pairs of atomic excitations instead of photons ('inverse DCE') and coherent annihilation of pair of system excitations due to the atomic modulation ('anti-DCE'). These results are extended to the circuit QED architecture where similar effects can be implemented with a single qubit, providing an alternative way to generate novel cavity and atom-field entangled states.
ISSN:1751-8113
1751-8121
DOI:10.1088/1751-8113/48/24/245302