A universal, representation-independent MPS overlap formula is proved for glN rational spin chains and proposed for soN and spN chains.
Overlaps of Partial Neel States and Bethe States
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Partial Neel states are generalizations of the ordinary Neel (classical anti-ferromagnet) state that can have arbitrary integer spin. We study overlaps of these states with Bethe states. We first identify this overlap with a partial version of reflecting-boundary domain-wall partition function, and then derive various determinant representations for off-shell and on-shell Bethe states.
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Derivations for the MPS overlap formulas of rational spin chains
A universal, representation-independent MPS overlap formula is proved for glN rational spin chains and proposed for soN and spN chains.