Rabi oscillations and macroscopic quantum superposition states
Rabi oscillations and macroscopic quantum superposition states
复制标题
拉比振荡和宏观量子叠加态
DOI：
10.1103/physreva.66.023810
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发表时间：
2001
影响因子：
2.9
通讯作者：
M. Frasca
中科院分区：
文献类型：
--
作者：
M. Frasca
在强耦合条件下，考虑了二能级原子与单模辐射场的相互作用。结果表明，与约瑟夫森结中拉比振荡的最新结果[Y.中村，余。A. Pashkin和J.S. Tsai，Phys. Rev. Lett. 87，246601（2001）]，Rabi频率在大量光子的限制下确实与第一类整数阶Bessel函数成比例，并且修饰态是宏观量子叠加态。为了解决这个问题，分析使用的双重戴森级数和双波近似。
A two-level atom interacting with a single radiation mode is considered, without the rotating-wave approximation, in the strong-coupling regime. It is shown that, in agreement with the recent results on Rabi oscillations in a Josephson junction [Y. Nakamura, Yu. A. Pashkin, and J. S. Tsai, Phys. Rev. Lett. 87, 246601 (2001)], the Rabi frequency is indeed proportional to first kind integer order Bessel functions in the limit of a large number of photons and the dressed states are macroscopic quantum superposition states. To approach this problem, analytical use of the dual Dyson series and the rotating-wave approximation is made.