Transferência de energia eletrônica quanticamente coerente: a natureza pensou nisso primeiro?

quinta-feira, fevereiro 25, 2010

Quantum-Coherent Electronic Energy Transfer: Did Nature Think of It First?

Gregory D. Scholes*

Department of Chemistry, Institute for Optical Sciences and Centre for Quantum Information and Quantum Control, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6 Canada

J. Phys. Chem. Lett., 2010, 1 (1), pp 2–8
DOI: 10.1021/jz900062f

Publication Date (Web): January 7, 2010

Copyright © 2010 American Chemical Society



Recent research suggests that electronic energy transfer in complex biological and chemical systems can involve quantum coherence, even at ambient temperature conditions. It is particularly notable that this phenomenon has been found in some photosynthetic proteins. The role of these proteins in photosynthesis is introduced. The meaning of quantum-coherent energy transfer is explained, and it is compared to F€orster energy transfer. Broad, interdisciplinary questions for future work are noted. For example, how can chemists use quantum coherence in synthetic systems (perhaps in organic photovoltaics)? Why did certain  photosynthetic organisms evolve to use quantum coherence in light harvesting? Are these electronic excitations entangled?