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Refinement of Bethe ansatz string and its alternative

Authors
  • Kundu, Anjan
Type
Preprint
Publication Date
Nov 28, 2000
Submission Date
Nov 28, 2000
Identifiers
arXiv ID: cond-mat/0011467
Source
arXiv
License
Unknown
External links

Abstract

The well known string solution to Bethe ansatz equations is shown to be inconsistent in its widely accepted form. A valid refinement demanding higher order corrections in subsequent roots is identified. A new alternative string solution is proposed for finite long chains, consistent with the non-Bethe strings observed earlier.

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