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arXiv 0810.3372cond-mat.mes-hall
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三阱绝热输运中中心阱粒子数消失的条件

Conditions for Vanishing Central-well Population in Triple-well Adiabatic Transport

Tomas Opatrny, Kunal K. Das

摘要:

本文推导了在转移过程中中心阱布居数始终可忽略的三阱系统中绝热通道相干隧穿(CTAP)的解析表达式。它示出的操作的极端井的深度,与时间变化的\emph{non-adjacent}障碍是必不可少的维持人口消失的中心井。我们的条件的有效性证明了与时间相关的薛定谔方程的数值解。传输过程被解释为通过中心井的电流。

英文摘要:

Analytical expressions are derived for coherent tunneling via adiabatic passage (CTAP) in a triple well system with negligible central-well population at all times during the transfer. It is shown that a manipulation of the depths of the extreme-wells, correlated with the time variation of the \emph{non-adjacent} barriers is essential for maintaining vanishing population of the central well. The validity of our conditions are demonstrated with a numerical solution of the time-dependent Schrödinger equation. The transfer process is interpreted in terms of a current through the central well.

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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