1205.3472 (A. V. Dodonov et al.)

Dynamical Casimir Effect in cavity with N-level detector or N-1
two-level atoms    [PDF]

A. V. Dodonov, V. V. Dodonov

We study the photon generation from vacuum via the Dynamical Casimir Effect in a cavity containing a N-level detector in equally-spaced resonant ladder configuration or N-1 identical resonant two-level atoms. If the modulation frequency equals exactly twice the unperturbed cavity frequency, the photon growth goes on steadily for odd N, while for even N at most N-2 photons can be generated. This finding is corroborated by numerical calculations. In the limit $N\to\infty$ we obtain the harmonic oscillator model of the detector, which admits analytical results.

View original: http://arxiv.org/abs/1205.3472