Photon creation in a resonant cavity with a nonstationary plasma mirror and its detection with Rydberg atoms

Autor: Katsuji Yamamoto, Toru Kawakubo
Rok vydání: 2011
Předmět:
Zdroj: Physical Review A. 83
ISSN: 1094-1622
1050-2947
DOI: 10.1103/physreva.83.013819
Popis: We investigate the dynamical Casimir effect and its detection with Rydberg atoms. The photons are created in a resonant cavity with a plasma mirror of a semiconductor slab which is irradiated by periodic laser pulses. The canonical Hamiltonian is derived for the creation and annihilation operators showing the explicit time-variation in the couplings, which originates from the external configuration such as a nonstationary plasma mirror. The number of created photons is evaluated as squeezing from the Heisenberg equations with the Hamiltonian. Then, the detection of the photons as the atomic excitations is examined through the atom-field interaction. Some consideration is made for a feasible experimental realization with a semiconductor plasma mirror.
Comment: 8 pages, 2 figures
Databáze: OpenAIRE