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Generalized Jost functions and Levinsons's theorem in a (1 + 1) -dimensional relativistic field-theoretic model

Journal Article · · Phys. Rev., D; (United States)

By introducing generalized Jost functions with simple analytic properties we express the exact S matrix of the massive Thirring model (sine-Gordon model) for the fermion-fermion and the two fermion-antifermion channels (soliton-soliton and soliton-antisoliton) in a form very similar to that encountered in one-dimensional potential scattering. Relations between the number of bound states and the phase shifts of the direct and crossed channels (generalized Levinson's theorem) are discussed within this relativistic model.

Research Organization:
Institut fuer Theoretische Physik, Freie Universitaet Berlin, D-1000 Berlin 33, Arnimallee 3, Germany
OSTI ID:
7075189
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 17:4; ISSN PRVDA
Country of Publication:
United States
Language:
English