Evidence for magnon BEC in superfluid 3He-A
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چکیده
The phenomenon of phase-coherent precession of magnetization in superfluid He and the related effects of spin superfluidity are based on the true Bose-Einstein condensation of magnons. Several different states of coherent precession have been observed in He-B: homogeneously precessing domain (HPD); persistent signal formed by Q-balls at very low temperatures; coherent precession with fractional magnetization; and two new modes of the coherent precession in compressed aerogel. Here we demonstrate the evidence of magnons Bose-Einstein condensation in He-A in a compressed aerogel.
منابع مشابه
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تاریخ انتشار 2017