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Quantum dissipative systems in crystallographic potentials
The influence of a nonlocal dissipation on the energy band structure of a particle moving in a d-dimensional crystallographic potential is investigated. It is shown that depending on the values of the friction constant η and the tunneling amplitude y the band width Δ E can be zero or finite at T→0,...
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Published in: | Physics letters. A 1984-01, Vol.104 (4), p.215-220 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The influence of a nonlocal dissipation on the energy band structure of a particle moving in a
d-dimensional crystallographic potential is investigated. It is shown that depending on the values of the friction constant η and the tunneling amplitude
y the band width Δ
E can be zero or finite at
T→0, corresponding to localized or delocalized states respectively. The low-
T dependences of the band width (or the effective mass
m
∗) and of the correlation function are found also. |
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ISSN: | 0375-9601 1873-2429 |
DOI: | 10.1016/0375-9601(84)90267-6 |