Boundary S-Matrix And Boundary State In 2-Dimensional Integrable Quantum-Field Theory

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 boundary analog of the crossing-symmetry condition of the ''bulk'' S matrix. We derive the boundary S matrices for the Ising field theory with boundary magnet...更多