arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/0606004quant-ph
收藏

瞬时相互作用谐振子的无噪声测量

Noise-Free Measurement of Harmonic Oscillators with Instantaneous Interactions

M. Franca Santos, G. Giedke, E. Solano

摘要:

本文提出了一种通过Jaynes-Cummings型的瞬时探针-系统选择性相互作用测量谐振子量子态的方法。我们证明了该方案是强大的一般退相干机制,允许测量快速衰减系统中的弱耦合制度的可能性。这种方法可以应用于不同的设置:囚禁离子的运动状态,腔/电路QED中的微波场,甚至腔内光场。

英文摘要:

We present a method of measuring the quantum state of a harmonic oscillator through instantaneous probe-system selective interactions of the Jaynes-Cummings type. We prove that this scheme is robust to general decoherence mechanisms, allowing the possibility of measuring fast-decaying systems in the weak-coupling regime. This method could be applied to different setups: motional states of trapped ions, microwave fields in cavity/circuit QED, and even intra-cavity optical fields.

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。

↑