Dynamic of 3He-A and A1 Phases

1 April 1981

journal article
Published by Oxford University Press (OUP) in Progress of Theoretical Physics

Vol. 65 (4) , 1145-1157
https://doi.org/10.1143/ptp.65.1145

Abstract

The dynamics in the A and A₁ phases of superfluid ³He is investigated. Second sound (entropy wave) and longitudinal spin wave are discussed within the framework of the hydrodynamic equations. In the A₁ phase, T_{A₁ > T > T_{A₂, second sound is storogly coupled to a spinwave, while in the A phase far from the A₂ transition T_{A₂ they are separeted. In the A phase close to T_{A₂, where the order parameter has characters of the A and the A₁ phases, they arecoupled the coupling being determined by temperature, pressure and magnetic field. The detectability of the coupling effect depends on the frequency or the wave vector.}}}}

Keywords

DYNAMIC OF 3HE
3HE A AND A1 PHASES

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