Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1998-02-11
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
to appear in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.80.3348
A theoretical investigation of quantum-transport phenomena in mesoscopic systems is presented. In particular, a generalization to ``open systems'' of the well-known semiconductor Bloch equations is proposed. The presence of spatial boundary conditions manifest itself through self-energy corrections and additional source terms in the kinetic equations, whose form is suitable for a solution via a generalized Monte Carlo simulation. The proposed approach is applied to the study of quantum-transport phenomena in double-barrier structures as well as in superlattices, showing a strong interplay between phase coherence and relaxation.
Carlo Aldo Di
Lugli Paolo
Rossi Fausto
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