Quantum electron transport in degenerate donor–acceptor systems

Saxena, Avadh Behari; Berman, Gennady Petrovich; Merkli, Marco

doi:10.1063/1.5138725

Quantum electron transport in degenerate donor–acceptor systems

Journal Article · Wed Jul 01 00:00:00 EDT 2020 · Journal of Mathematical Physics

DOI:https://doi.org/10.1063/1.5138725· OSTI ID:1650628

^[1]; Berman, Gennady Petrovich ^[1]; Merkli, Marco ^[2]

Los Alamos National Laboratory
Memorial University of Newfoundland

In this work, we develop a mathematically rigorous theory for the quantum transfer processes in degenerate donor–acceptor dimers in contact with a thermal environment. We explicitly calculate the transfer rates and the acceptor population efficiency. The latter depends critically on the initial donor state. Additionally, we show that quantum coherence in the initial state enhances the transfer process. If the electron is initially shared coherently by the donor levels, then the efficiency can reach values close to 100%, while an incoherent initial donor state will significantly suppress the efficiency. The results are useful for a better understanding of the quantum electron transport in many chemical, solid state, and biological systems with complex degenerate and quasi-degenerate energy landscapes.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1650628

Alternate ID(s):: OSTI ID: 1635576

Report Number(s):: LA-UR--19-31360

Journal Information:: Journal of Mathematical Physics, Journal Name: Journal of Mathematical Physics Journal Issue: 7 Vol. 61; ISSN 0022-2488

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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