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Overlap between usual and modified Bethe vectors

Abstract : We consider the overlap of Bethe vectors of the XXX spin chain with a diagonal twist and the modified Bethe vectors with a general twist. We find a determinant representation for this overlap under one additional condition on the twist parameters. Such objects arise in the calculations of nonequilibrium physics.
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Preprints, Working Papers, ...
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https://hal.archives-ouvertes.fr/hal-03262631
Contributor : Inspire Hep <>
Submitted on : Wednesday, June 16, 2021 - 4:18:14 PM
Last modification on : Thursday, June 17, 2021 - 8:51:18 AM

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S. Belliard, N.A. Slavnov. Overlap between usual and modified Bethe vectors. 2021. ⟨hal-03262631⟩

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