Non-Markovian Quantum Jumps in Excitonic Energy Transfer

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Non-Markovian Quantum Jumps in Excitonic Energy Transfer

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Title: Non-Markovian Quantum Jumps in Excitonic Energy Transfer
Author: Rebentrost, Patrick; Chakraborty, Rupak; Aspuru-Guzik, Alán

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Citation: Rebentrost, Patrick, Rupak Chakraborty, and Alán Aspuru-Guzik. 2009. Non-Markovian quantum jumps in excitonic energy transfer. Journal of Chemical Physics 131(18): 184102.
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Abstract: We utilize the novel non-Markovian quantum jump (NMQJ) approach to stochastically simulate exciton dynamics derived from a time-convolutionless master equation. For relevant parameters and time scales, the time-dependent, oscillatory decoherence rates can have negative regions, a signature of non-Markovian behavior and of the revival of coherences. This can lead to non-Markovian population beatings for a dimer system at room temperature. We show that strong exciton-phonon coupling to low frequency modes can considerably modify transport properties. We observe increased exciton transport, which can be seen as an extension of recent environment-assisted quantum transport concepts to the non-Markovian regime. Within the NMQJ method, the Fenna–Matthew–Olson protein is investigated as a prototype for larger photosynthetic complexes.
Published Version: doi:10.1063/1.3259838
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