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Zavjalov VV, Autti S, Eltsov VB, et al. Light Higgs channel of the resonant decay of magnon condensate in superfluid (3)He-B. Nat Commun. 2016;7:10294doi: 10.1038/ncomms10294.
Zavjalov, V. V., Autti, S., Eltsov, V. B., Heikkinen, P. J., & Volovik, G. E. (2016). Light Higgs channel of the resonant decay of magnon condensate in superfluid (3)He-B. Nature communications, 710294. https://doi.org/10.1038/ncomms10294
Zavjalov, V V, et al. "Light Higgs channel of the resonant decay of magnon condensate in superfluid (3)He-B." Nature communications vol. 7 (2016): 10294. doi: https://doi.org/10.1038/ncomms10294
Zavjalov VV, Autti S, Eltsov VB, Heikkinen PJ, Volovik GE. Light Higgs channel of the resonant decay of magnon condensate in superfluid (3)He-B. Nat Commun. 2016 Jan 08;7:10294. doi: 10.1038/ncomms10294. PMID: 26743951; PMCID: PMC4729873.
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Nat Commun. 2016 Jan 08;7:10294. doi: 10.1038/ncomms10294.

Light Higgs channel of the resonant decay of magnon condensate in superfluid (3)He-B.

Nature communications

V V Zavjalov, S Autti, V B Eltsov, P J Heikkinen, G E Volovik

Affiliations

  1. Department of Applied Physics, Low Temperature Laboratory, Aalto University, PO Box 15100, FI-00076 AALTO Espoo, Finland.
  2. Landau Institute for Theoretical Physics, acad. Semyonov av., 1a, 142432, Chernogolovka, Russia.

PMID: 26743951 PMCID: PMC4729873 DOI: 10.1038/ncomms10294

Abstract

In superfluids the order parameter, which describes spontaneous symmetry breaking, is an analogue of the Higgs field in the Standard Model of particle physics. Oscillations of the field amplitude are massive Higgs bosons, while oscillations of the orientation are massless Nambu-Goldstone bosons. The 125 GeV Higgs boson, discovered at Large Hadron Collider, is light compared with electroweak energy scale. Here, we show that such light Higgs exists in superfluid (3)He-B, where one of three Nambu-Goldstone spin-wave modes acquires small mass due to the spin-orbit interaction. Other modes become optical and acoustic magnons. We observe parametric decay of Bose-Einstein condensate of optical magnons to light Higgs modes and decay of optical to acoustic magnons. Formation of a light Higgs from a Nambu-Goldstone mode observed in (3)He-B opens a possibility that such scenario can be realized in other systems, where violation of some hidden symmetry is possible, including the Standard Model.

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