Particle-like excitations in systems described by the Hubbard model without the chirality condition

V. K. Fedyanin


Abstract: Consideration is given to the consequences of giving up the chirality condition and the assumptions about the nature of the dynamics in the Hubbard model used by Lindner and Fedyanin [1]. A self-consistent pair of soliton solutions is found for the case when the electron-phonon interaction is switched off ($I=0$) and their possible modifications for $I\ne0$ are discussed.

Received: 11.10.1979

 English version: Theoretical and Mathematical Physics, 1981, 46:1, 57–60

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