Quantum Mechanical Hysteresis and the Electron Transfer Problem

Details Quantum Mechanical Hysteresis and the Electron Transfer Problem Quantum Mechanical Hysteresis and the Electron Transfer Problem

2004-07-13

arxiv.org/abs/quant-ph/0407087v1

Physics

Quantum Physics

Accepted Physica A

Scientific paper

We study a simple quantum mechanical symmetric donor-acceptor model for electron transfer (ET) with coupling to internal deformations. The model contains several basic properties found in biological ET in enzymes and photosynthetic centers; it produces tunnelling with hysteresis thus providing a simple explanation for the slowness of the reversed rate and the near 100% efficiency of ET in many biological systems. The model also provides a conceptual framework for the development of molecular electronics memory elements based on electrostatic architectures.

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