The unified approach to integrable relativistic equations: Soliton solutions over nonvanishing backgrounds. II
- 1 July 1993
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 34 (7), 3054-3072
- https://doi.org/10.1063/1.530062
Abstract
In Part I of this work the N-soliton solution has been constructed for the generic system associated with the sl(2,C) case of the scheme for the unified description of integrable relativistic massive fields. Here, solutions are isolated for reductions of this system, including the (conventional) complex sine-Gordon equation, the massive Thirring model and another complexification of the sine-Gordon equation defined by the Lagrangian L= ‖∂μφ‖2/1−‖φ‖2 +‖φ‖2−J 2μ/2‖φ‖2(1−‖φ‖2) , Jμ=i(φ*∂μφ−φ∂μφ*). The latter model is shown to exhibit decays and fusion of (subluminal) solitons. The reduction to the conventional complex sine-Gordon appears to be even more interesting as it cannot be defined by simply restricting the linear problem to some real form of sl(2,C) algebra, and the relevant involution turns out to be quite nontrivial. When the background is flat, this involution degenerates and so the N-kink solution for the reduction cannot be extracted from the generic N-kink solution directly. This difficulty is bypassed by seeing the flat background case as a limit of an exponential one.This publication has 10 references indexed in Scilit:
- The unified approach to integrable relativistic equations: Soliton solutions over nonvanishing backgrounds. IJournal of Mathematical Physics, 1993
- Multisoliton solutions in the scheme for unified description of integrable relativistic massive fields. Non-degeneratesl(2, ?) caseCommunications in Mathematical Physics, 1987
- Multi-soliton solutions to the Thirring model through the reduction methodLetters in Mathematical Physics, 1984
- Integrable model of a nonlinear complex scalar field with nontrivial asymptotic behavior of soliton solutionsTheoretical and Mathematical Physics, 1979
- Classically solvable field theory modelAnnals of Physics, 1978
- On the coleman correspondence and the solution of the massive thirring modelLettere al Nuovo Cimento (1971-1985), 1977
- Example of a Relativistic, Completely Integrable, Hamiltonian SystemPhysical Review Letters, 1977
- On the complete integrability of the two-dimensional classical Thirring modelTheoretical and Mathematical Physics, 1977
- Integrable Hamiltonian systems and interactions through quadratic constraintsCommunications in Mathematical Physics, 1976
- Unified approach to strings and vortices with soliton solutionsPhysical Review D, 1976