Tunneling and orthogonality catastrophe in the topological mechanism of superconductivity

Details Tunneling and orthogonality catastrophe in the topological mechanism of superconductivity Tunneling and orthogonality catastrophe in the topological mechanism of superconductivity

1997-01-22

arxiv.org/abs/cond-mat/9701163v3

Phys. Rev. Lett., 78, pp 4103-4106 (1997)

Physics

Condensed Matter

Superconductivity

4 pages, Revtex, psfig; some references are corrected

Scientific paper

10.1103/PhysRevLett.78.4103

We compute the angular dependence of the order parameter and tunneling amplitude in a model exhibiting topological superconductivity and sketch its derivation as a model of a doped Mott insulator. We show that ground states differing by an odd number of particles are orthogonal and the order parameter is in the d-representation, although the gap in the electronic spectrum has no nodes. We also develop an operator algebra, that allowes one to compute off-diagonal correlation functions.

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