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arXiv · hep-th/9903072

Bosonic-type S-Matrix, Vacuum Instability and CDD Ambiguities

G. Mussardo·P. Simon
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Abstract

We consider the simplest bosonic-type S-matrix which is usually regarded as unphysical due to the complex values of the finite volume ground state energy. While a standard quantum field theory interpretation of such a scattering theory is precluded, we argue that the physical situation described by this S-matrix is of a massive Ising model perturbed by a particular set of irrelevant operators. The presence of these operators drastically affects the stability of the original vacuum of the massive Ising model and its ultraviolet properties.

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G. Mussardo, P. Simon. 2000-01-19. Bosonic-type S-Matrix, Vacuum Instability and CDD Ambiguities. https://doi.org/10.1016/s0550-3213(99)00806-8

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