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MO: Fachverband Molekülphysik

MO 26: Poster: Biomolecules

MO 26.8: Poster

Donnerstag, 11. März 2010, 16:00–18:30, Lichthof

Energy transport in small molecular aggregates at finite temperature — •Gerhard Ritschel¹, Sebastian Möbius¹, Jan Roden², Alexander Eisfeld², and Walter T. Strunz¹ — ¹Institut für Theoretische Physik, Technische Universität Dresden, Germany — ²Max-Planck-Institut für Physik komplexer Systeme, Dresden, Germany

We present an efficient stochastic Schrödinger equation method to treat molecular aggregates with a single relevant vibrational degree of freedom for each monomer in a thermal environment. Based on ideas developed for non-Markovian open quantum systems, the vibrational degrees of freedom and the thermal bath may be replaced by colored stochastic processes such that the ensuing Schrödinger equation propagates states of the electronic degrees of freedom only [1]. The method is applied to study optical properties and energy transport in aggregates of coupled monomers at finite temperature.

[1] J. Roden, A. Eisfeld, W. Wolff, W. T. Strunz, Phys. Rev. Lett. 103, 058301 (2009)