Exact Solution of Soliton Model in Deformable Two-DimensionalElectron-Phonon System
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Abstract
The total Hamiltonian is generalized to the case of a polaron moving in deformable two-dimensional electron-phonon system. A nonlinear Schrödinger equation for 2D deformable medium is derived, and an exact solitary-wave solution is obtained by the method of series of functions. -