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VOLUME 59 | ISSUE 6 | PAGE 441
The Mott transition and superconductivity
If a Mott transition is not accompanied by changes in the crystal symmetry or the magnetic symmetry, a state with a split conduction band would have to be a phase-coherent state, to which the Luttinger theorem does not apply. From this standpoint, a superconducting state is a realization of a Mott state. Numerical data for the ID Hubbard model illustrate this conclusion.




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