论文标题
最佳的腔设计，以最大程度地减少基于腔QED的原子 - 光子孔纠缠有限的时间持续时间的错误
Optimal cavity design for minimizing errors in cavity-QED-based atom-photon entangling gates with finite temporal duration
论文作者
论文摘要
我们根据有限的光子脉冲持续时间研究了基于空腔量子电动力学（QED）的原子 - 光子纠缠门，其中不仅光子损失，而且还引起光子脉冲的时间模式不匹配，也会成为严重的误差源。我们通过分析得出腔参数之间的关系，包括射频的透射，长度和有效的腔截面区域，通过将光子损耗概率和由于时间模式不匹配而导致的错误率最小化，通过将其视为依赖状态的脉冲延迟。我们还使用数值模拟的脉冲持续时间来研究脉冲失真的影响。我们认为，这些分析是第一个提出腔体具有最佳长度的原子 - 光子门，这为实施量子信息处理提供了基本指南。
We investigate atom-photon entangling gates based on cavity quantum electrodynamics (QED) for a finite photon-pulse duration, where not only the photon loss but also the temporal mode-mismatch of the photon pulse becomes a severe source of error. We analytically derive relations between cavity parameters, including transmittance, length, and effective cross-sectional area of the cavity, that minimize both the photon loss probability and the error rate due to temporal mode-mismatch by taking it into account as state-dependent pulse delay. We also investigate the effects of pulse distortion using numerical simulations for the case of short pulse duration. We believe that these analyses are the first to suggest that a cavity has an optimal length for the atom-photon gate, providing a fundamental guideline for implementing quantum information processing.
