3 papers
hep-th1994
Boundary S-matrix of the -symmetric Non-linear Sigma Model
Subir Ghoshal
We conjecture that the -symmetric non-linear sigma model in the semi-infinite -dimensional space is ``integrable'' with respect to the ``free'' and the ``fixed'' bound…
hep-th1993
Bound State Boundary S-matrix of the sine-Gordon Model
Subir Ghoshal
We study the boundary S-matrix for the reflection of bound states of the two-dimensional sine-Gordon integrable field theory in the presence of a boundary.
hep-th1993
Boundary S-Matrix and Boundary State in Two-Dimensional Integrable Quantum Field Theory
Subir Ghoshal, Alexander Zamolodchikov
We study integrals of motion and factorizable S-matrices in two-dimensional integrable field theory with boundary. We propose the ``boundary cross-unitarity equation'' which is the…