Exact Solution of a Repulsive Fermi Model with Enhanced Superconducting Correlations

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.

PDF Exact_Solution_of_a_Repulsive_Fermi_Model_with_Enhanced_Superconducting_Correlations.pdf Restricted to Registered users only Download (74kB) | Request a copy

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
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

Actions (login required)

View Item