Diagonal form factors from non-diagonal ones

2017/07/25 by Bajnok, Zoltan, Wu, Chao
#FOS: Physical sciences #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.1707.08027

Abstract

We prove the asymptotic large volume expression of diagonal form factors in integrable models by evaluating carefully the diagonal limit of a non-diagonal form factor in which we send the rapidity of the extra particle to infinity.

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