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Photo-activated biological processes as quantum measurements

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arxiv 1408.5798 v1 pith:GJPRGFAS submitted 2014-08-21 quant-ph physics.bio-phq-bio.BM

classification quant-phphysics.bio-phq-bio.BM
keywords biologicalquantummeasurementfieldmeasurementsphoto-activatedsystemachieve
verification ladder T0 review T1 audit T2 compute T3 formal
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We outline a framework for describing photo-activated biological reactions as generalized quantum measurements of external fields, for which the biological system takes on the role of a quantum meter. By using general arguments regarding the Hamiltonian that describes the measurement interaction, we identify the cases where it is essential for a complex chemical or biological system to exhibit non-equilibrium quantum coherent dynamics in order to achieve the requisite functionality. We illustrate the analysis by considering measurement of the solar radiation field in photosynthesis and measurement of the earth's magnetic field in avian magnetoreception.

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