Breather boundary form factors in sine-Gordon theory

Details Breather boundary form factors in sine-Gordon theory Breather boundary form factors in sine-Gordon theory

2011-06-09

arxiv.org/abs/1106.1902v1

Nucl.Phys.B852:615-633,2011

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX2e file, 23 pages, 10 eps figures

Scientific paper

10.1016/j.nuclphysb.2011.07.010

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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