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arXiv quant-ph/9905047quant-ph
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波包通过隧道势垒的传输时间

Transmission time of wave packets through tunneling barriers

Yu. Lozovik, A. Filinov

摘要:

用量子分子动力学方法详细研究了波包通过隧道势垒的传输。计算了隧穿包到达势垒前后的时间分布函数和动量分布函数。研究了包的平均坐标、平均动量及其方差的行为。结果表明,在高斯势垒下,部分数据包被反射,高斯势垒增加了传输数据包的平均动量及其在动量空间中的方差。

英文摘要:

The transmission of wave packets through tunneling barriers is studied in detail by the method of quantum molecular dynamics. The distribution function of the times describing the arrival of a tunneling packet in front of and behind a barrier and the momentum distribution function of the packet are calculated. The behavior of the average coordinate of a packet, the average momentum, and their variances is investigated. It is found that under the barrier a part of the packet is reflected and a Gaussian barrier increases the average momentum of the transmitted packet and its variance in momentum space.

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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