Krishnamurthy, HR and Shastry, Sriram B (2000) Exact Solution of a Repulsive Fermi Model with Enhanced Superconducting Correlations. In: Physical Review Letters, 84 (21). pp. 4918-4921.
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Abstract
We present the exact solution of a model of interacting fermions in any dimension with a pure repulsive interaction projecting out a given Cooper channel. The solution rests upon the infinite ranged character of the interaction in real space, leading to a functional integral that is dominated by a Gaussian term. The solution produces strong superconducting enhancements and quasi-long-ranged order in a channel that is not present in the Hamiltonian explicitly, but of the form given by arguments from order by projection.
Item Type: | Journal Article |
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Publication: | Physical Review Letters |
Publisher: | American Physical Society |
Additional Information: | Copyright of this article belongs to American Physical Society. |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 01 Aug 2006 |
Last Modified: | 19 Sep 2010 04:30 |
URI: | http://eprints.iisc.ac.in/id/eprint/7963 |
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