Magnetism and infrared divergence in a Hubbard-phonon interacting system
Sekine, Yoshitsugu
arXiv, 1008.2056 / Harvested from arXiv
Text on arXiv
We show that a finite Hubbard-phonon interacting system has ferromagnetic or unique spin-singlet ground state under the infrared singular condition. The key tool is a unitary transformation introduced by Arai and Hirokawa. We construct a concrete infrared singular representation using the operator algebraic method. The method is essentially same as one for the van Hove model using the Wightman functional method.
Publié le : 2010-08-12
Classification:  Mathematical Physics 
@article{1008.2056,
     author = {Sekine, Yoshitsugu},
     title = {Magnetism and infrared divergence in a Hubbard-phonon interacting system},
     journal = {arXiv},
     volume = {2010},
     number = {0},
     year = {2010},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1008.2056}
}

Sekine, Yoshitsugu. Magnetism and infrared divergence in a Hubbard-phonon interacting system. arXiv, Tome 2010 (2010) no. 0, . http://gdmltest.u-ga.fr/item/1008.2056/