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Dynamical crossovers in Markovian exciton transport

Author(s): Fassioli, Francesca; Hossein-Nejad, Hoda; Hossein-Nejad, Hoda; Hossein-Nejad, Hoda; Olaya-Castro, Alexandra; et al

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Abstract: The large deviation theory has recently been applied to open quantum systems to uncover dynamical crossovers in the space of quantum trajectories associated to Markovian evolutions. Such dynamical crossovers are characterized by qualitative changes in the fluctuations of rare quantum jump trajectories, and have been observed in the statistics of coherently driven quantum systems. In this paper we investigate the counting statistics of the rare quantum trajectories of an undriven system undergoing a pure relaxation process, namely, Markovian exciton transport. We find that dynamical crossovers occur in systems with a minimum of three interacting molecules, and are strongly activated by exciton delocalization and interference. Our results illustrate how quantum features of the underlying system Hamiltonian can influence the statistical properties of energy transfer processes in a non-trivial manner. © IOP Publishing and Deutsche Physikalische Gesellschaft.
Publication Date: 1-Aug-2013
Electronic Publication Date: 29-Aug-2013
Citation: Hossein-Nejad, Hoda, Olaya-Castro, Alexandra, Fassioli, Francesca, Scholes, Gregory D. (2013). Dynamical crossovers in Markovian exciton transport. New Journal of Physics, 15 (8), 083056 - 083056. doi:10.1088/1367-2630/15/8/083056
DOI: doi:10.1088/1367-2630/15/8/083056
EISSN: 1367-2630
Pages: 15:083056-1 - 083056-14
Type of Material: Journal Article
Journal/Proceeding Title: New Journal of Physics
Version: Final published version. This is an open access article.
Notes: New Journal of Physics. Volume 15, August 2013, Article number 083056.

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