Geodesic
Particle-like excitations in systems described by the Hubbard model without the chirality condition
Teoretičeskaâ i matematičeskaâ fizika, Tome 46 (1981) no. 1, pp. 86-90

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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. 
@article{TMF_1981_46_1_a7,
     author = {V. K. Fedyanin},
     title = {Particle-like excitations in systems described by the {Hubbard} model without the chirality condition},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {86--90},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1981_46_1_a7/}
}
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V. K. Fedyanin. Particle-like excitations in systems described by the Hubbard model without the chirality condition. Teoretičeskaâ i matematičeskaâ fizika, Tome 46 (1981) no. 1, pp. 86-90. http://geodesic.mathdoc.fr/item/TMF_1981_46_1_a7/