Order parameters in -type spin  quantum models with Gibbsian ground states.

Skrypnik, Wolodymyr

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Quantum interfaces

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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 $S U_{q} (2)$ holds as a true quantum symmetry, but only for D=1.

Quasi-exactly solvable $N$ -body spin Hamiltonians with short-range interaction potentials.

Enciso, A, Finkel, F., González-López, A., Rodríguez, M.A. (2006)

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Exponential of a hamiltonian in large subsets of a lattice and applications

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Displaying similar documents to “Order parameters in X X Z -type spin 1 2 quantum models with Gibbsian ground states.”

Displaying similar documents to “Order parameters in $X X Z$ -type spin $\frac{1}{2}$ quantum models with Gibbsian ground states.”