Boundary Reflection Matrix in Perturbative Quantum Field Theory
classification
✦ hep-th
keywords
boundarymatrixreflectiontheoryfieldhalfquantumaffine
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We study boundary reflection matrix for the quantum field theory defined on a half line using Feynman's perturbation theory. The boundary reflection matrix can be extracted directly from the two-point correlation function. This enables us to determine the boundary reflection matrix for affine Toda field theory with the Neumann boundary condition modulo `a mysterious factor half'.
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