Criteria for quantum coherent transfer of excitations between chromophores in a polar solvent

Gilmore, J. B. and McKenzie, R. H. (2006) Criteria for quantum coherent transfer of excitations between chromophores in a polar solvent. Chemical Physics Letters, 421 1-3: 266-271. doi:10.1016/j.cplett.2005.12.104


Author Gilmore, J. B.
McKenzie, R. H.
Title Criteria for quantum coherent transfer of excitations between chromophores in a polar solvent
Journal name Chemical Physics Letters   Check publisher's open access policy
ISSN 0009-2614
Publication date 2006-01-01
Sub-type Article (original research)
DOI 10.1016/j.cplett.2005.12.104
Volume 421
Issue 1-3
Start page 266
End page 271
Total pages 6
Editor A Zewail
D C Clary
V Sundstroem
Place of publication Amsterdam
Publisher Elsevier Science Bv
Language eng
Subject C1
240203 Condensed Matter Physics - Electronic and Magnetic Properties; Superconductivity
780102 Physical sciences
Abstract We show that the quantum decoherence of Forster resonant energy transfer between two optically active molecules can be described by a spin-boson model. This allows us to give quantitative criteria that are necessary for coherent quantum oscillations of excitations between the chromophores. Experimental tests of our results should be possible with flourescent resonant energy transfer (FRET) spectroscopy. Although we focus on the case of protein-pigment complexes our results are also relevant to quantum dots and organic molecules in a dielectric medium. (c) 2006 Elsevier B.V. All rights reserved.
Keyword Chemistry, Physical
Physics, Atomic, Molecular & Chemical
Dissipative 2-state System
Exciton Delocalization
Dielectric-relaxation
Solvation Dynamics
Energy-transfer
Protein
Decoherence
Complexes
Molecules
Liquids
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 18:34:51 EST