Regensburg 2010 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 33: Poster I: Transport, including Magnetic-Field Effects

HL 33.3: Poster

Dienstag, 23. März 2010, 18:30–20:30, Poster D1

Transport through a molecular junction within P(E)-theory — •Denis Kast and Joachim Ankerhold — Institut für Theoretische Physik, Universität Ulm

Directed charge transfer in isolated molecular aggregates originates from a fluctuating environment consisting e.g. of internal vibronic modes or solvent degrees of freedom. Corresponding transfer rates can be derived within the P(E)-formalism known from the theory of Coulomb-blockade in single charge transfer. This methodology can be extended to describe incoherent charge transport through molecular junctions including the electromagnetic environment of the actual circuitry. We present first results for simple molecular junctions and for internal vibronic degrees of freedom in and out of thermal equilibrium. Findings are compared with data from real-time Quantum Monte Carlo simulations.