Temporal witnesses of non-classicality in a macroscopic biological system
arXiv:2306.12799 · doi:10.1038/s41598-024-66159-x
Abstract
Exciton transfer along a polymer is essential for many biological processes, for instance light harvesting in photosynthetic biosystems. Here we apply a new witness of non-classicality to this phenomenon, to conclude that, if an exciton can mediate the coherent quantum evolution of a photon, then the exciton is non-classical. We then propose a general qubit model for the quantum transfer of an exciton along a polymer chain, also discussing the effects of environmental decoherence. The generality of our results makes them ideal candidates to design new tests of quantum features in complex bio-molecules.
16 pages (7 pages main text, 9 pages appendices), 8 figures
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