Correlation-dependent coherent to incoherent transitions in resonant energy transfer dynamics.
نویسنده
چکیده
I investigate energy transfer in a donor-acceptor pair beyond weak system-bath coupling. I identify a transition from coherent to incoherent dynamics with increasing temperature, due to multiphonon effects not captured by a standard weak-coupling treatment. The crossover temperature has a marked dependence on the degree of spatial correlation between fluctuations experienced at the two system sites. For strong correlations, this leads to the possibility of coherence surviving into a high-temperature regime.
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ورودعنوان ژورنال:
- Physical review letters
دوره 103 14 شماره
صفحات -
تاریخ انتشار 2009