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Title: Algebraic Bethe Ansatz scheme for relativistic integrable field theories in continuum

Journal Article · · Int. J. Mod. Phys. A; (United States)

The linear problem associated with the Lax operator of the classical sine-Gordon theory can be recast into the monodromy matrix form that can be extended to quantum theory as well. Product of the quantum monodromy matrices has contributions from the singularities arising out of the operator product expansions of sine-Gordon field. This enables one to find the star-triangle relations. This is a generalization of the method used by Thacker for the non-relativistic nonlinear Schrodinger field theory. In the infinite volume limit, it leads to an unambiguous description of the algebra involving the scattering data operators. Starting from a vacuum the module of physical states are constructed by the application of chains of the scattering operators and they turn out to have definite eigenvalues of energy and momentum.

Research Organization:
Saha Inst. of Nuclear Physics, Calcutta (India)
OSTI ID:
5725138
Journal Information:
Int. J. Mod. Phys. A; (United States), Vol. 4:3
Country of Publication:
United States
Language:
English