Quantum Transport in Networks and Photosynthetic Complexes at the Steady State
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AuthorManzano Diosdado, Daniel
Public Library of Science (PLOS)
Antennae (animal physiology)Energy transferMonte Carlo methodNoise reductionPhotonsQuantum entanglementQuantum stateSulfur
Manzano, D. Quantum Transport in Networks and Photosynthetic Complexes at the Steady State. Plos One, 8(2): e57041 (2013). [http://hdl.handle.net/10481/31016]
SponsorshipThe research was funded by the Austrian Science Fund (FWF): F04011 and F04012 and by Spanish MEC-FEDER, project FIS2009-08451, together with the Campus de Excelencia Internacional and the Junta de Andalucia, project FQM-165 (Spain).
Recently, several works have analysed the efficiency of photosynthetic complexes in a transient scenario and how that efficiency is affected by environmental noise. Here, following a quantum master equation approach, we study the energy and excitation transport in fully connected networks both in general and in the particular case of the Fenna–Matthew–Olson complex. The analysis is carried out for the steady state of the system where the excitation energy is constantly “flowing” through the system. Steady state transport scenarios are particularly relevant if the evolution of the quantum system is not conditioned on the arrival of individual excitations. By adding dephasing to the system, we analyse the possibility of noise-enhancement of the quantum transport.