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Anharmonic oscillators, the thermodynamic Bethe ansatz, and nonlinear integral equations
Patrick Dorey, Roberto Tateo
The spectral determinant of the quartic oscillator is known to satisfy a functional equation. This is mapped onto the -related -system emerging in the treatment of a…
On the phase diagram of the discrete spin models
Patrick Dorey, Paolo Provero, Roberto Tateo +1
We point out some problems with the previously-proposed phase diagram of the spin models. Consideration of the diagram near to the decoupling surface using both exact and app…
Generalisations of the Coleman-Thun mechanism and boundary reflection factors
Patrick Dorey, Roberto Tateo, Gerard Watts
We make a complete pole analysis of the reflection factors of the boundary scaling Lee-Yang model. In the process we uncover a number of previously unremarked mechanisms for the ge…
Exact S-matrices
Patrick Dorey
Notes on exact S-matrices in 1+1 dimensions, based on lectures given at the 1996 Eotvos Graduate School, Budapest, and at the Institut Henri Poincare, Paris.