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Remarks on “theory of scattering in a superconducting state”

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  • Murayama, Yoshimasa

Abstract

Recently the author showed that in a superconductor the existence of scatterers like non-magnetic impurities or phonons in their long wavelength limit never limits the infinite ‘Ohmic’ conductivity which could be expected in the absence of those scatterers. In this paper we discuss the relation of such an infinite conductivity with the freely acceleratable current which is described by the second London equation. Then the results of the former paper are reproduced here by virtue of the canonical transformation technique. It is also suggested that due to the infinite ‘Ohmic’ conductivity giant voltage noises would occur as the temperature approached zero, since then the conductivity is determined by the vanishing density of current carriers (Bogolons) multiplied by an infinite (effective) momentum relaxation time.

Suggested Citation

  • Murayama, Yoshimasa, 1981. "Remarks on “theory of scattering in a superconducting state”," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 106(3), pages 622-632.
    • Handle: RePEc:eee:phsmap:v:106:y:1981:i:3:p:622-632
    DOI: 10.1016/0378-4371(81)90131-X
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