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Article Dans Une Revue Journal of Low Temperature Physics Année : 2010

Evidence for magnon BEC in superfluid 3He-A

Résumé

The phenomenon of phase-coherent precession of magnetization in superfluid 3He 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 3He-B: homogeneously precessing domain (HPD); persistent signal formed byQ-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 3He-A in a compressed aerogel.
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Dates et versions

hal-00917395 , version 1 (13-12-2013)

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Pierre Hunger, Yuriy M. Bunkov, Eddy Collin, Henri Godfrin. Evidence for magnon BEC in superfluid 3He-A. Journal of Low Temperature Physics, 2010, 158 (1), pp.129. ⟨10.1007/s10909-009-9970-3⟩. ⟨hal-00917395⟩

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