Adagideli, Inanc and Goldbart, P. and Shnirman, A. and Yazdani, A. (1999) Low-energy quasiparticle states near extended scatterers in d-wave superconductors and their connection with SUSY quantum mechanics. Physical Review Letters 83, p. 5571.
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Low-energy quasiparticle states, arising from scattering by single-particle potentials in d-wave superconductors, are addressed. Via a natural extension of the Andreev approximation, the idea that sign-variations in the superconducting pair-potential lead to such states is extended beyond its original setting of boundary scattering to the broader context of scattering by general single-particle potentials, such as those due to impurities. The index-theoretic origin of these states is exhibited via a simple connection with Wittens supersymmetric quantum-mechanical model.
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||05 Aug 2009 13:33|