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        Nested algebraic Bethe ansatz for deformed orthogonal and symplectic spin chains

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        1_s2.0_S0550321320301073_main.pdf (PDF, 407Kb)
        Author
        Gerrard, Allan
        Regelskis, Vidas
        Attention
        2299/22931
        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.
        Publication date
        2020-07
        Published in
        Nuclear Physics B
        Published version
        https://doi.org/10.1016/j.nuclphysb.2020.115021
        Other links
        http://hdl.handle.net/2299/22931
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