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Temporal witnesses of non-classicality in a macroscopic biological system

Abstract:
Exciton transfer along a bio-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 bio-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.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41598-024-66159-x

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Institution:
University of Oxford
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Institution:
University of Oxford
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Institution:
University of Oxford
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Funder identifier:
https://ror.org/006wxqw41


Publisher:
Nature Research
Journal:
Scientific Reports More from this journal
Volume:
14
Issue:
1
Article number:
20094
Publication date:
2024-08-29
Acceptance date:
2024-06-27
DOI:
EISSN:
2045-2322


Language:
English
Source identifiers:
2223781
Deposit date:
2024-08-29
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