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Backlund transformations for difference Hirota equation and supersymmetric Bethe ansatz

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 نشر من قبل Anton Zabrodin
 تاريخ النشر 2007
  مجال البحث فيزياء
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 تأليف A. Zabrodin




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We consider GL(K|M)-invariant integrable supersymmetric spin chains with twisted boundary conditions and elucidate the role of Backlund transformations in solving the difference Hirota equation for eigenvalues of their transfer matrices. The nested Bethe ansatz technique is shown to be equivalent to a chain of successive Backlund transformations undressing the original problem to a trivial one.



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