Zm. Sheng et Hb. Gao, ON THE SINE-GORDON - THIRRING EQUIVALENCE IN THE PRESENCE OF A BOUNDARY, International journal of modern physics A, 11(22), 1996, pp. 4089-4101
In this paper, the relationship between the sine-Gordon model with an
integrable boundary condition and the Thirring model with boundary is
discussed and the reflection R matrix for the massive Thirring model,
which is related to the physical boundary parameters of the sine-Gordo
n model, is given. The relationship between the boundary parameters an
d the two formal parameters appearing in the work of Ghoshal and Zamol
odchikov is also discussed.