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arXiv quant-ph/0310153quant-ph
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光腔中原子运动的量子反馈控制

Quantum Feedback Control of Atomic Motion in an Optical Cavity

Daniel A. Steck, Kurt Jacobs, Hideo Mabuchi, Tanmoy Bhattacharya, Salman Habib

摘要:

作为一个典型的非线性量子控制问题,我们研究了光腔中原子运动的量子反馈冷却。我们设计了一个反馈算法,尽管这个问题的非线性性质,但它可以高效地将原子冷却到光学势的基态。一个重要的组成部分是一个简化的状态估计算法,必要的实时执行的反馈回路。我们还描述了宇称动力学在冷却过程中的关键作用,并提出了一个简单的理论,预测可实现的稳态原子能量。

英文摘要:

We study quantum feedback cooling of atomic motion in an optical cavity as a prototypical nonlinear quantum control problem. We design a feedback algorithm that can cool the atom to the ground state of the optical potential with high efficiency despite the nonlinear nature of this problem. An important ingredient is a simplified state-estimation algorithm, necessary for a real-time implementation of the feedback loop. We also describe the critical role of parity dynamics in the cooling process and present a simple theory that predicts the achievable steady-state atomic energies.

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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