Journal of Low Temperature Physics

, Volume 42, Issue 3–4, pp 277–294 | Cite as

Oscillation in a nonequilibrium superconductor

  • Wang Chang-Heng
  • Zhu Xue-Yuan
Article
Received:

Using the μ*-model and the Rothwarf-Taylor equations, this paper predicts that a superconductor will oscillate between two nonequilibrium superconducting states with different energy gaps when quasiparticles are injected at the edge of the energy gap through the tunneling effect. The main sources of origin of this oscillation are the quasiparticle injection at the gap edge and the existance of recombination phonons with energy Ω = 2δ(n). Under certain nonequilibrium conditions, the recombination phonon system does not take part in Cooper pair-breaking processes and can further stimulate the quasiparticles to recombine into pairs. The uncertainty δNp of the number Npof Cooper pairs has the same order of magnitude as Npitself in such an oscillating superconductor, so that the phase ϕ of the wave function has a definite value. If superconducting weak coupling is formed between such two oscillating superconductors, this system should be described in the θ-representation.

Keywords

Recombination Wave Function Magnetic Material Weak Coupling Superconducting State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • Wang Chang-Heng
    • 1
  • Zhu Xue-Yuan
    • 1
  1. 1.The Institute of Physics, Chinese Academy of SciencesBeijing (Peking)China

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