Breather boundary form factors in sine-Gordon theory |
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Authors: | M LencsésG Takács |
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Institution: | a Budapest University of Technology and Economics, Hungary b HAS Theoretical Physics Research Group, 1117 Budapest, Pázmány Péter sétány 1/A, Hungary |
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Abstract: | A previously conjectured set of exact form factors of boundary exponential operators in the sinh-Gordon model is tested against numerical results from boundary truncated conformal space approach in boundary sine-Gordon theory, related by analytic continuation to sinh-Gordon model. We find that the numerical data strongly support the validity of the form factors themselves; however, we also report a discrepancy in the case of diagonal matrix elements, which remains unresolved for the time being. |
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