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Towards a Non-equilibrium Bethe ansatz for the Kondo Model

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 نشر من قبل Eldad Bettelheim
 تاريخ النشر 2015
  مجال البحث فيزياء
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 تأليف Eldad Bettelheim




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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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