Corrections to Higgs Mode Masses in Superfluid 3He from Acoustic Spectroscopy

M. D. Nguyen*, A. M. Zimmerman, W. P. Halperin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Superfluid 3He has a rich spectrum of collective modes with both massive and massless excitations. The masses of these modes can be precisely measured using acoustic spectroscopy and fit to theoretical models. Prior comparisons of the experimental results with theory did not include strong-coupling effects beyond the weak-coupling-plus BCS model, so-called non-trivial strong-coupling corrections. In this work we utilize recent strong-coupling calculations to determine the Higgs masses and find consistency between experiments that relate them to a sub-dominant f-wave pairing strength.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Dec 11 2018

ASJC Scopus subject areas

  • General

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