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arXiv · 1404.0235

Semi-classical scalar products in the generalised SU(2) model

Ivan Kostov
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Abstract

In these notes we review the field-theoretical approach to the computation of the scalar product of multi-magnon states in the Sutherland limit where the magnon rapidities condense into one or several macroscopic arrays. We formulate a systematic procedure for computing the 1/M expansion of the on-shell/off-shell scalar product of M-magnon states in the generalised integrable model with SU(2)-invariant rational R-matrix. The coefficients of the expansion are obtained as multiple contour integrals in the rapidity plane.

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Ivan Kostov. 2014-05-30. Semi-classical scalar products in the generalised SU(2) model. https://arxiv.org/abs/1404.0235

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