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arXiv 1110.1024quant-ph
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利用工程衰变驱动光腔中的双原子进入纠缠稳态

Driving two atoms in an optical cavity into an entangled steady state using engineered decay

Florentin Reiter, Michael J. Kastoryano, Anders S. Sørensen

摘要:

我们提出了在光腔中耗散制备两原子最大纠缠稳态的各种方案。利用腔光子损失和自发发射的自然衰减过程,我们使用有效算子形式来识别和设计有效的衰减过程,该过程达到两个原子的纠缠稳态作为耗散时间演化的唯一不动点。我们调查的各个方面,是至关重要的实验实施我们的计划在当今和未来的腔量子电动力学系统和分析得出的最佳参数,误差缩放和我们的协议的收敛速度。我们的研究表明,我们的计划,现有的腔实验和良好的缩放保真度和速度相对于腔参数有前途的性能。

英文摘要:

We propose various schemes for the dissipative preparation of a maximally entangled steady state of two atoms in an optical cavity. Harnessing the natural decay processes of cavity photon loss and spontaneous emission, we use an effective operator formalism to identify and engineer effective decay processes, which reach an entangled steady state of two atoms as the unique fixed point of the dissipative time evolution. We investigate various aspects that are crucial for the experimental implementation of our schemes in present-day and future cavity quantum electrodynamics systems and analytically derive the optimal parameters, the error scaling and the speed of convergence of our protocols. Our study shows promising performance of our schemes for existing cavity experiments and favorable scaling of fidelity and speed with respect to the cavity parameters.

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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