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arXiv 1306.2213quant-ph
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不等振子强度λ介质中通过亮态的受激拉曼绝热通道

Stimulated Raman Adiabatic Passage via bright state in Lambda medium of unequal oscillator strengths

G. G. Grigoryan, C. Leroy, Y. Pashayan-Leroy, L. Chakhmakhchyan, S. Guérin, H. R. Jauslin

摘要:

本文研究了在不同振子强度的λ型原子介质中,考虑传播效应的受激拉曼绝热通过亮态(b-STIRAP)的布居转移过程。用解析和数值计算方法证明了粒子数转移效率对跃迁振子强度比q_p/q_s的敏感性。我们发现q_p>q_s的情况比$q_p \leq q_s$的情况对布居转移过程更不利。在这种情况下,可以增加介质维数,同时允许有效的布居转移。找到了决定传播过程中相互作用绝热性的判据,并证明了表征布居数转移的混合参数是超光传播的。

英文摘要:

We consider the population transfer process in a Lambda-type atomic medium of unequal oscillator strengths by stimulated Raman adiabatic passage via bright-state (b-STIRAP) taking into account propagation effects. Using both analytic and numerical methods we show that the population transfer efficiency is sensitive to the ratio q_p/q_s of the transition oscillator strengths. We find that the case q_p>q_s is more detrimental for population transfer process as compared to the case where $q_p \leq q_s$. For this case it is possible to increase medium dimensions while permitting efficient population transfer. A criterion determining the interaction adiabaticity in the course of propagation process is found. We also show that the mixing parameter characterizing the population transfer propagates superluminally.

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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