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 manifests itself through self-energy corrections and additional source terms in the kinetic equations, whose forms are 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.
Microscopic theory of quantum-transport phenomena in mesoscopic systems: A Monte Carlo approach / Rossi, Fausto; DI CARLO, A.; Lugli, P.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 80:15(1998), pp. 3348-3351. [10.1103/PhysRevLett.80.3348]
Microscopic theory of quantum-transport phenomena in mesoscopic systems: A Monte Carlo approach
ROSSI, FAUSTO;
1998
Abstract
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 manifests itself through self-energy corrections and additional source terms in the kinetic equations, whose forms are 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.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/1405205
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