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arXiv · 1204.4634

Open Quantum System Approach to the Modeling of Spin Recombination Reactions

M. Tiersch·U. E. Steiner·S. Popescu·H. J. Briegel
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Abstract

In theories of spin-dependent radical pair reactions, the time evolution of the radical pair, including the effect of the chemical kinetics, is described by a master equation in the Liouville formalism. For the description of the chemical kinetics, a number of possible reaction operators have been formulated in the literature. In this work, we present a framework that allows for a unified description of the various proposed mechanisms and the forms of reaction operators for the spin-selective recombination processes. Based on the concept that master equations can be derived from a microscopic description of the spin system interacting with external degrees of freedom, it is possible to gain insight into the underlying microscopic processes and to develop a systematic approach towards determining the specific form of reaction operator in concrete scenarios.

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M. Tiersch, U. E. Steiner, S. Popescu, H. J. Briegel. 2012-04-20. Open Quantum System Approach to the Modeling of Spin Recombination Reactions. https://doi.org/10.1021/jp209196a

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