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arXiv 1102.1047quant-phcond-mat.supr-con
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在腔QED中观察不同的量子轨道

Observing different quantum trajectories in cavity QED

Marcelo França Santos, Andre R. R. Carvalho

摘要:

量子跳跃的实验观察是单个开放量子系统的一个例子,当被监测时,它会根据测量结果的随机轨迹演化。在这里,我们提出了一个建议,允许在腔QED系统中的一个更大的类的量子轨迹的实验观察。特别是,我们的计划允许监测工程热浴,这是至关重要的探测纠缠衰变和纠缠保护最近的建议。该方案依赖于一个三能级原子与一个腔模的相互作用,腔模同时扮演系统和探测器的角色。如果探测到原子,腔场的演化遵循量子轨道,反之亦然。

英文摘要:

The experimental observation of quantum jumps is an example of single open quantum systems that, when monitored, evolve in terms of stochastic trajectories conditioned on measurements results. Here we present a proposal that allows the experimental observation of a much larger class of quantum trajectories in cavity QED systems. In particular, our scheme allows for the monitoring of engineered thermal baths that are crucial for recent proposals for probing entanglement decay and also for entanglement protection. The scheme relies on the interaction of a three-level atom and a cavity mode that interchangeably play the roles of system and probe. If the atom is detected the evolution of the cavity fields follows quantum trajectories and vice-versa.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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