Phonons in a magnon superfluid and symmetry-breaking field |
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| Authors: | G E Volovik |
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| Institution: | (1) Low Temperature Laboratory, Helsinki University of Technology, FIN-02015 HUT, Finland;(2) Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 119334, Russia |
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| Abstract: | Recent experiments 1,2] on the measurement of the spectrum of the Goldstone collective mode of a coherently precessing state
in 3He-B are discussed using the presentation of the coherent-spin precession in terms of the Bose-Einstein condensation of magnons.
The mass in the spectrum of the Goldstone boson—a phonon in the superfluid magnon liquid—is induced by the symmetry-breaking
field, which is played by the RF magnetic field.
The text was submitted by the author in English. |
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