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The influence of superflow on collective excitations in3He-B

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Abstract

The influence of superflow on the order parameter collective modes in3He-B is investigated for temperatures 0≤T/T c ≤0.5 by the continual integral method. The superflow induces a gap distortion, which splits the pair-breaking, squashing, and real squashing modes at zero momentumk. Furthermore, a crossing of the real squashing mode branches with different|J z | occurs at nonzerok. In addition, the superflow makes it possible to observe the pair-breaking modes and causes a hydrodynamic shift of longitudinal NMR frequency.

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Brusov, P.N. The influence of superflow on collective excitations in3He-B. J Low Temp Phys 58, 265–271 (1985). https://doi.org/10.1007/BF00681306

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Keywords

  • Magnetic Material
  • Integral Method
  • Collective Mode
  • Collective Excitation
  • Mode Branch