Tuesday, March 13, 2012

1203.2410 (Shu He et al.)

Jaynes-Cummings model: What emerges first beyond the rotating-wave
approximation?
   [PDF]

Shu He, Qing-Hu Chen, Xue-Zao Ren, Tao Liu, Ke-Lin Wang
The Jaynes-Cummings model without the rotating-wave approximation can be solved exactly by extended Swain's ansatz with the conserved parity. The analytical approximations are then performed at different levels. The well-known rotating-wave approximation is naturally covered in the present zero and first approximations. The effect of the counter rotating-wave term emerges clearly in the second order approximation. The concise analytical expressions are given explicitly and can be applicable up to the ultra-strong coupling regime. The preliminary application to the vacuum Rabi splitting is shown to be very successful.
View original: http://arxiv.org/abs/1203.2410

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