Transmission time of wave packets through tunneling barriers

Details Transmission time of wave packets through tunneling barriers Transmission time of wave packets through tunneling barriers

1999-05-14

arxiv.org/abs/quant-ph/9905047v1

J.Exp.Theor.Phys. 88 (1999) 1026-1035; Zh.Eksp.Teor.Fiz. 115 (1999) 1872-1889

Physics

Quantum Physics

23 pages, 5 figures

Scientific paper

10.1134/1.558886

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.

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