Multiparameter Integrable QFT's with N bosons

Details Multiparameter Integrable QFT's with N bosons Multiparameter Integrable QFT's with N bosons

1998-04-10

arxiv.org/abs/hep-th/9804080v1

Nucl.Phys. B535 (1998) 596-620

Physics

High Energy Physics

High Energy Physics - Theory

Harvmax, 28 pages with 3 postscript figures

Scientific paper

10.1016/S0550-3213(98)00622-1

We introduce a new family of integrable theories with $N$ bosons and $N$ freely adjustable mass parameters. These theories restrict in particular limits to the ``generalized supersymmetric'' sine-Gordon models, as well as to the flavor anisotropic chiral Gross Neveu models (studied recently by N. Andrei and collaborators). The scattering theory involves scalar particles that are no bound states, and bears an intriguing resemblance wih the results of a sharp cut-off analysis of the Thirring model carried out by Korepin in (1980). Various physical applications are discussed. In particular, we demonstrate that our theories are the appropriate continuum limit of integrable quantum spin chains with mixtures of spins.

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