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arXiv:cond-mat/0302058

Spin-charge separation and recombination in quantum disordered d-wave superconductors

Igor F. Herbut

Published Feb 4, 2003• 0 citations
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Abstract

Some of the results of this paper have been superseded in the meantime. See, cond-mat/0410557.
DOI
10.48550/arxiv.cond-mat/0302058

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In a recent Comment (cond-mat/9701197) on our Letter (PRL 77, 3013 (1996), cond-mat/9604176) Nersesyan and Tsvelik questioned the relevance of our exact calculation of the density of states (DOS) of a 2D d-wave superconductor using a Lorentzian disorder distribution, claiming ``that models with Lorentzian and Gaussian disorder belong to different universality classes'', on grounds of a comparison with a straightforward perturbation expansion in the disorder potential. We showed in a very recent paper (cond-mat/9703047) that a rigorous nonzero lower bound for DOS can be established without relying on the tails of the disorder distribution, i.e. both the Gaussian and Lorentzian distributions belong to a large class of distributions which give a nonzero lower bound for the DOS. This proves that the result of our Letter is generic.