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PGI-1 Talk: Dr. Viktor Cerovski

Microscopic Theory of Non-equilibrium Time-dependent Electronic Transport

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02 Nov 2016 11:30
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PGI Lecture Hall

University of Belgrade

Abstract:

Microscopic theory of nonequilibrium steady-state time-dependent electronic transport in two-probe geometry is derived using the formalism of Greens functions in linear-response regime at Hartree-Fock level, including time-inhomogeneous contributions related to the response of the central region to the external drive. The theory is suitable for use with density functional theory. The role of single-particle basis set is examined next, and shown that in time-dependent nonequilibrium electronic transport nonorthogonality plays a nontrivial role already at Hartree level, demonstrated by an example, in contradistinction to the time-independent case.

Contact

Prof. Dr. Stefan Blügel
Phone: +49 2461 61-4249
Fax: +49 2461 61-2850
email: s.bluegel@fz-juelich.de