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Optimization of parameters in coherent spin dynamics of radical pairs in quantum biology.

ABSTRACT: Identification of the external electromagnetic fields and internal hyperfine parameters which optimize the quantum singlet-triplet yield of simplified radical pairs modeled by Schrödinger system with spin Hamiltonians given by the sum of Zeeman interaction and hyperfine coupling interaction terms are analyzed. A method that combines sensitivity analysis with Tikhonov regularization is implemented. Numerical results demonstrate that the quantum singlet-triplet yield of the radical pair system can be significantly reduced if optimization is pursued simultaneously for both external magnetic fields and internal hyperfine parameters. The results may contribute towards understanding the structure-function relationship of a putative magnetoreceptor to manipulate and enhance quantum coherences at room temperature and leveraging biofidelic function to inspire novel quantum devices.

SUBMITTER: Martino CF

PROVIDER: S-EPMC9956872 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Optimization of parameters in coherent spin dynamics of radical pairs in quantum biology.

Martino Carlos F CF Jimenez Pablo P Goldfarb Max M Abdulla Ugur G UG

PloS one 20230224 2

Identification of the external electromagnetic fields and internal hyperfine parameters which optimize the quantum singlet-triplet yield of simplified radical pairs modeled by Schrödinger system with spin Hamiltonians given by the sum of Zeeman interaction and hyperfine coupling interaction terms are analyzed. A method that combines sensitivity analysis with Tikhonov regularization is implemented. Numerical results demonstrate that the quantum singlet-triplet yield of the radical pair system can ...[more]

PMID: 36827400

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