Phys. Rev. Lett. 78, 4103–4106 (1997)Tunneling and Orthogonality Catastrophe in the Topological Mechanism of SuperconductivityReceived 24 January 1997; published in the issue dated 26 May 1997 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 allows one to compute off-diagonal correlation functions. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.78.4103
DOI:
10.1103/PhysRevLett.78.4103
PACS:
74.20.Mn
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