Three order parameters in quantum spin-oscillator models with Gibbsian ground states.
Dorlas, Teunis C., Skrypnik, Wolodymyr I. (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Dorlas, Teunis C., Skrypnik, Wolodymyr I. (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Bruno Nachtergaele (1998)
Banach Center Publications
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We review recent results on interface states in quantum statistical mechanics.
Links, Jon, Hibberd, Katrina E. (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Bianca Cerchiai, Peter Schupp (1997)
Banach Center Publications
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The Hamiltonian for an extended Hubbard model with phonons as introduced by A. Montorsi and M. Rasetti is considered on a D-dimensional lattice. The symmetries of the model are studied in various cases. It is shown that for a certain choice of the parameters a superconducting holds as a true quantum symmetry, but only for D=1.
Enciso, A, Finkel, F., González-López, A., Rodríguez, M.A. (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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J. Nourrigat (2005)
Journées Équations aux dérivées partielles
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Inozemtsev, Vladimir I., Inozemtseva, Natalia G. (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Iorgov, Nikolai (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Andrianov, Alexander A., Sokolov, Andrey V. (2009)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Duviryak, Askold (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Kundu, Anjan (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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