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d-Wave Superconductivity in the Hubbard Model

Maier, Thomas ; Jarrell, Mark ; Pruschke, Thomas ; Keller, Joachim
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Date of publication of this fulltext: 05 Aug 2009 13:31


Abstract

The superconducting instabilities of the doped repulsive 2D Hubbard model are studied in the intermediate to strong coupling regime with the help of the dynamical cluster approximation. To solve the effective cluster problem we employ an extended noncrossing approximation, which allows for a transition to the broken symmetry state. At sufficiently low temperatures we find stable {\it d}-wave ...

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