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.
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14 November 2009
Research Article|
November 09 2009
Non-Markovian quantum jumps in excitonic energy transfer
Patrick Rebentrost;
Patrick Rebentrost
a)
Department of Chemistry and Chemical Biology,
Harvard University
, 12 Oxford St., Cambridge, Massachusetts 02138, USA
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Rupak Chakraborty;
Rupak Chakraborty
Department of Chemistry and Chemical Biology,
Harvard University
, 12 Oxford St., Cambridge, Massachusetts 02138, USA
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Alán Aspuru-Guzik
Alán Aspuru-Guzik
b)
Department of Chemistry and Chemical Biology,
Harvard University
, 12 Oxford St., Cambridge, Massachusetts 02138, USA
Search for other works by this author on:
Patrick Rebentrost
a)
Rupak Chakraborty
Alán Aspuru-Guzik
b)
Department of Chemistry and Chemical Biology,
Harvard University
, 12 Oxford St., Cambridge, Massachusetts 02138, USA
a)
Electronic mail: [email protected].
b)
Electronic mail: [email protected].
J. Chem. Phys. 131, 184102 (2009)
Article history
Received:
August 13 2009
Accepted:
October 19 2009
Citation
Patrick Rebentrost, Rupak Chakraborty, Alán Aspuru-Guzik; Non-Markovian quantum jumps in excitonic energy transfer. J. Chem. Phys. 14 November 2009; 131 (18): 184102. https://doi.org/10.1063/1.3259838
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