Investigation of thermalization in giant-spin models by different Lindblad schemes

C. Beckmann; J. Schnack

doi:10.1016/j.jmmm.2017.04.021

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arXiv · 1611.09695

Investigation of thermalization in giant-spin models by different Lindblad schemes

C. Beckmann·J. Schnack

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Abstract

The theoretical understanding of time-dependence in magnetic quantum systems is of great importance in particular for cases where a unitary time evolution is accompanied by relaxation processes. A key example is given by the dynamics of single-molecule magnets where quantum tunneling of the magnetization competes with thermal relaxation over the anisotropy barrier. In this article we investigate how good a Lindblad approach describes the relaxation in giant spin models and how the result depends on the employed operator that transmits the action of the thermal bath.

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C. Beckmann, J. Schnack. 2016-11-29. Investigation of thermalization in giant-spin models by different Lindblad schemes. https://doi.org/10.1016/j.jmmm.2017.04.021

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