Transmission times of wave packets tunneling through barriers |
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Authors: | Yu E Lozovik A V Filinov |
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Institution: | (1) Institute of Spectroscopy, Russian Academy of Sciences, 142092 Troitsk, Moscow Region, Russia |
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Abstract: | The transmission of wave packets through barriers by tunneling is studied in detail by the method of quantum molecular dynamics.
The distribution of the arrival times of a tunneling packet in front of and behind a barrier and the momentum distribution
function of the packet are calculated. The average position and average momentum of the packet and their spread are investigated.
It is found that below the barrier a part of the packet is reflected, and a Gaussian barrier increases the average momentum
of the transmitted packet and its spread in momentum space.
Zh. éksp. Teor. Fiz. 115, 1872–1889 (May 1999) |
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