Correlation-dependent coherent to incoherent transitions in resonant energy transfer dynamics
Mesoscale and Nanoscale Physics
2009-10-05 v2 Quantum Physics
Abstract
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 multi-phonon 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.
Cite
@article{arxiv.0906.0592,
title = {Correlation-dependent coherent to incoherent transitions in resonant energy transfer dynamics},
author = {Ahsan Nazir},
journal= {arXiv preprint arXiv:0906.0592},
year = {2009}
}
Comments
5 pages, 1 figure, 2 page supplement. Published version. Figure edited, section added on experimental relevance, reference added, various minor changes to the text. Comments welcome