arXiv Analytics

Sign in

arXiv:cond-mat/0105312AbstractReferencesReviewsResources

Transport in nanostructures: A comparison between nonequilibrium Green functions and density matrices

Andreas Wacker

Published 2001-05-16Version 1

Stationary electric transport in semiconductor nanostructures is studied by the method of nonequilibrium Green functions. In the case of sequential tunneling the results are compared with density matrix theory, providing almost identical results. Nevertheless, the method of Green functions is easier to handle due to the availability of an absolute energy scale. It is demonstrated, that the transport in complicated structures, like quantum cascade lasers, can be described in reasonable agreement with experiment.

Comments: 12 pages, to be published in Advances in Solid State Physics, ed. by B. Kramer (Springer, Berlin 2001)
Journal: pp 199-210 in Advances in Solid State Physics, ed. by B. Kramer (Springer, Berlin 2001); Volume 41/2001
Categories: cond-mat.mes-hall
Related articles: Most relevant | Search more
arXiv:cond-mat/0304562 (Published 2003-04-24)
Simulation of Transport and Gain in Quantum Cascade Lasers
arXiv:1705.03072 [cond-mat.mes-hall] (Published 2017-05-08)
Density Matrix Modeling of Quantum Cascade Lasers without an Artificially Localized Basis: A Generalized Scattering Approach
arXiv:1601.03212 [cond-mat.mes-hall] (Published 2016-01-13)
Low-threshold RNGH instabilities in quantum cascade lasers