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arXiv quant-ph/0612169quant-ph
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基于二能级原子的光场梯度回波量子存储

Gradient Echo Quantum Memory for Light using Two-level Atoms

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, M. J. Sellars

摘要:

我们提出了一种类似于核磁共振梯度回波的光量子存储器。我们的建议是理想的完全有效的,并提供了简化目前的3级量子存储方案的基础上控制非均匀加宽。我们的方案不需要辅助光场。相反,输入光脉冲仅与具有线性增加的斯塔克位移的二能级原子相互作用。通过简单地反转原子斯塔克位移的符号,脉冲在向前的方向上被恢复。我们提出了这个计划的分析,数值和实验结果。我们报告的实验效率高达15%,并建议简单的可实现的改进,以显着提高效率。

英文摘要:

We propose a quantum memory for light that is analogous to the NMR gradient echo. Our proposal is ideally perfectly efficient and provides simplifications to current 3-level quantum memory schemes based on controlled inhomogeneous broadening. Our scheme does not require auxiliary light fields. Instead the input optical pulse interacts only with two-level atoms that have linearly increasing Stark shifts. By simply reversing the sign of the atomic Stark shifts, the pulse is retrieved in the forward direction. We present analytical, numerical and experimental results of this scheme. We report experimental efficiencies of up to 15% and suggest simple realizable improvements to significantly increase the efficiency.

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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