Environment-assisted quantum transport

Rebentrost, Patrick, Mohseni, Masoud, Kassal, Ivan, Lloyd, Seth and Aspuru-Guzik, Alan (2009) Environment-assisted quantum transport. New Journal of Physics, 11 . doi:10.1088/1367-2630/11/3/033003

Author Rebentrost, Patrick
Mohseni, Masoud
Kassal, Ivan
Lloyd, Seth
Aspuru-Guzik, Alan
Title Environment-assisted quantum transport
Journal name New Journal of Physics   Check publisher's open access policy
ISSN 1367-2630
Publication date 2009-03-01
Year available 2009
Sub-type Article (original research)
DOI 10.1088/1367-2630/11/3/033003
Open Access Status DOI
Volume 11
Total pages 12
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Language eng
Abstract Transport phenomena at the nanoscale are of interest due to the presence of both quantum and classical behavior. In this work, we demonstrate that quantum transport efficiency can be enhanced by a dynamical interplay of the system Hamiltonian with pure dephasing induced by a fluctuating environment. This is in contrast to fully coherent hopping that leads to localization in disordered systems, and to highly incoherent transfer that is eventually suppressed by the quantum Zeno effect. We study these phenomena in the Fenna–Matthews–Olson protein complex as a prototype for larger photosynthetic energy transfer systems. We also show that the disordered binary tree structures exhibit enhanced transport in the presence of dephasing.
Keyword Energy-transfer
Anderson localization
Excitation migration
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID W911NF-07-1-0304
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 437 times in Thomson Reuters Web of Science Article | Citations
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