Diagonal multisoliton matrix elements in finite volume

  title={Diagonal multisoliton matrix elements in finite volume},
  author={T. P'almai and G'abor Tak'acs},
  journal={Physical Review D},
We consider diagonal matrix elements of local operators between multi-soliton states in finite volume in the sine-Gordon model, and formulate a conjecture regarding their finite size dependence which is valid up to corrections exponential in the volume. This conjecture extends the results of Pozsgay and Tak\'acs which were only valid for diagonal scattering. In order to test the conjecture we implement a numerical renormalization group improved truncated conformal space approach. The numerical… Expand

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