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arXiv · hep-th/9306002

Boundary S-Matrix and Boundary State in Two-Dimensional Integrable Quantum Field Theory

Subir Ghoshal·Alexander Zamolodchikov
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Abstract

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 cross-symmetry condition of the ``bulk'' S-matrix. We derive the boundary S-matrices for the Ising field theory with boundary magnetic field and for the boundary sine-Gordon model.

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Subir Ghoshal, Alexander Zamolodchikov. 1993-06-02. Boundary S-Matrix and Boundary State in Two-Dimensional Integrable Quantum Field Theory. https://doi.org/10.1142/s0217751x94001552

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