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VLSI Design
Volume 8 (1998), Issue 1-4, Pages 197-202

A Generalized Monte Carlo Approach for the Analysis of Quantum-Transport Phenomena in Mesoscopic Systems: Interplay Between Coherence and Relaxation

1Istituto Nazionale Fisica della Materia (INFM) and Dipartimento di Fisica, Universitá di Modena, Modena I-41100, Italy
2INFM and Dipartimento di Ingegneria Elettroniea, Università di Roma “;Tor Vergata”, Roma I-00133, Italy

Copyright © 1998 Hindawi Publishing Corporation.


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. Compared to the conventional Bloch theory, the presence of spatial boundary conditions manifest itself through self-energy corrections and additional source terms in the kinetic equations, which are solved by means of a generalized Monte Carlo simulation.The proposed numerical approach is applied to the study of the scattering-induced suppression of Bloch oscillations in semiconductor superlattices as well as to the analysis of quantum-transport phenomena in double-barrier structures.