Crossovers between superconducting symmetry classes

@article{Koziy2011CrossoversBS,
  title={Crossovers between superconducting symmetry classes},
  author={Volodymyr Koziy and M. Skvortsov},
  journal={JETP Letters},
  year={2011},
  volume={94},
  pages={222-227}
}
  • Volodymyr Koziy, M. Skvortsov
  • Published 2011
  • Physics, Mathematics
  • JETP Letters
  • We study the average density of states in a small metallic grain coupled to two superconductors with the phase difference π, in a magnetic field. The spectrum of the low-energy excitations in the grain is described by the random matrix theory whose symmetry depends on the magnetic field strength and coupling to the superconductors. In the limiting cases, a pure superconducting symmetry class is realized. For intermediate magnetic fields or couplings to the superconductors, the system… CONTINUE READING

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