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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.

SUBMITTER: Di Pietra G

PROVIDER: S-EPMC11362292 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature

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Temporal witnesses of non-classicality in a macroscopic biological system.

Di Pietra Giuseppe G Vedral Vlatko V Marletto Chiara C

Scientific reports 20240829 1

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 g ...[more]

PMID: 39209858

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