Imaginary squashing mode spectroscopy of helium three B

J. P. Davis*, H. Choi, J. Pollanen, W. P. Halperin

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We have made precision measurements of the frequency of a collective mode of the superfluid 3He-B order parameter, the J = 2 - imaginary squashing mode. Measurements were performed at multiple pressures using interference of transverse sound in an acoustic cavity. Transverse waves propagate in the vicinity of this order parameter mode owing to off-resonant coupling. At the crossing of the sound mode and the order parameter mode, the sound wave is strongly attenuated. We use both velocity and attenuation measurements to determine precise values of the mode frequency with a resolution between 0.1% and 0.25%.

Original languageEnglish (US)
Pages (from-to)501-505
Number of pages5
JournalJournal of Low Temperature Physics
Volume148
Issue number5-6
DOIs
StatePublished - Sep 1 2007

Keywords

  • 43.20.Ks
  • 43.35.Lq
  • 67.57.-z
  • 67.57.Jj

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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