Dynamical Casimir Effect in cavity with N-level detector or N-1 two-level atoms
Dynamical Casimir Effect in cavity with N-level detector or N-1 two-level atoms
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DOI：
10.1103/physreva.86.015801
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发表时间：
2012-05
影响因子：
2.9
通讯作者：
A. Dodonov;V. Dodonov
中科院分区：
文献类型：
--
作者：
A. Dodonov;V. Dodonov
本文研究了在等间距共振阶梯结构的N能级探测器或N-1个全同共振二能级原子的腔中，利用动态Casimir效应从真空中产生光子的过程.如果调制频率正好等于未扰动腔频率的两倍，则对于奇数N，光子增长稳定地进行，而对于偶数N，最多可以产生N-2个光子。这一发现得到了数值计算的证实。在极限$N\to\infty$，我们得到的谐振子模型的检测器，承认解析结果。
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.