Nested algebraic Bethe ansatz for deformed orthogonal and symplectic spin chains

Allan Gerrard, Vidas Regelskis

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
25 Downloads (Pure)

Abstract

We construct exact eigenvectors and eigenvalues for Uq(sp2n)- and Uq(so2n)-symmetric closed spin chains by means of a nested algebraic Bethe ansatz method. We use a fusion procedure to construct higher-dimensional Lax operators. Our approach generalises and extends the results obtained by Reshetikhin and De Vega–Karowski. We also present a generalisation of Tarasov–Varchenko trace formula for nested Bethe vectors.
Original languageEnglish
Article number115021
Number of pages30
JournalNuclear Physics B
Volume956
DOIs
Publication statusPublished - Jul 2020

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