Superconductivity in the t-J model

Details Superconductivity in the t-J model Superconductivity in the t-J model

2002-10-17

arxiv.org/abs/cond-mat/0210385v2

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, RevTex, 1 figure, to appear in Condensed Matter Physics v.5, No.4 (2002)(Lviv, Ukraine) v.2: corrected typos

Scientific paper

A comparison of microscopic theories of superconductivity in the limit of strong electron correlations is presented. We consider results for the two-dimensional t-J model obtained within the projection technique for the Green functions in terms of the Hubbard operators and the slave-fermion representation for the RVB state. It is argued that the latter approach resulting in the odd-symmetry p-wave pairing for fermions is inadequate.

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