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Author Thorwart, Michael ♦ Eckel, Jens ♦ Reina, John H. ♦ Nalbach, Peter ♦ Weiss, Stephan
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-08-21
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Condensed Matter - Mesoscale and Nanoscale Physics ♦ Condensed Matter - Soft Condensed Matter ♦ Physics - Biological Physics ♦ Quantum Physics ♦ physics:cond-mat ♦ physics:physics ♦ physics:quant-ph
Abstract We show that quantum coherence of biomolecular excitons is maintained over exceedingly long times due to the constructive role of their non-Markovian protein-solvent environment. Using a numerically exact approach, we demonstrate that a slow quantum bath helps to sustain quantum entanglement of two pairs of Forster coupled excitons, in contrast to a Markovian environment. We consider the crossover from a fast to a slow bath and from weak to strong dissipation and show that a slow bath can generate robust entanglement. This persists to surprisingly high temperatures, even higher than the excitonic gap and is absent for a Markovian bath.
Description Reference: Chem. Phys. Lett. 478, 234 (2009)
Educational Use Research
Learning Resource Type Article


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