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arXiv · 1501.00424

Towards a Non-equilibrium Bethe ansatz for the Kondo Model

Eldad Bettelheim
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Abstract

We give integral equations for the generating function of the cummulants of the work done in a quench for the Kondo model in the thermodynamic limit. Our approach is based on an extension of the thermodynamic Bethe ansatz to non-equilibrium situations. This extension is made possible by use of a large $N$ expansion of the overlap between Bethe states. In particular, we make use of the Slavnov determinant formula for such overlaps, passing to a function-space representation of the Slavnov matrix . We leave the analysis of the resulting integral equations to future work.

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BibTeXRIS

Eldad Bettelheim. 2015-01-25. Towards a Non-equilibrium Bethe ansatz for the Kondo Model. https://doi.org/10.1088/1751-8113%2F48%2F16%2F165003

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