Physics – Biological Physics
Scientific paper
2012-03-15
Physics
Biological Physics
Paper delivered at the Royal Society Discussion Meeting "Quantum-coherent energy transfer: implications for biology and new en
Scientific paper
The quantum dynamics of transport networks in the presence of noisy environments have recently received renewed attention with the discovery of long-lived coherences in different photosynthetic complexes. This experimental evidence has raised two fundamental questions: Firstly, what are the mechanisms supporting long-lived coherences and secondly, how can we assess the possible functional role that the interplay of noise and quantum coherence might play in the seemingly optimal operation of biological systems under natural conditions? Here we review recent results, illuminate them at the hand of two paradigmatic systems, the Fenna-Matthew-Olson (FMO) complex and the light harvesting complex LHII, and present new progress on both questions. In particular we introduce the concept of the phonon antennae and discuss the possible microscopic origin or long-lived electronic coherences.
Chin Alex. W.
Huelga Susana F.
Plenio Martin . B.
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