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VOLUME 43 (1986) | ISSUE 11 |
PAGE 535
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Superfluid 3He-A and the electroweak interaction
Volovik G. E.
A field theory in superfluid 3He-A which describes the dynamics of chiral fermion excitations that are interacting with collective boson modes of the order parameter is similar to the theory of the electro weak interaction. The roles of photons and W bosons are played by orbital waves and quasi-Goldstone spin-orbit modes, respectively. In 3Hc-A, the W bosons have a mass because of the strong-coupling corrections, in contrast with the Weinberg-Salam theory, in which they acquire a mass because of the Higgs phenomenon. The effective interaction of fermions with W bosons in 3Ht-A is of a zero-charge nature and leads to an additional dissipation in the motion of quantized vortices and solitons at low temperatures.
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