Superfluid 3He in the zero temperature limit (Review Article)

Approaching the zero-temperature limit in superfluid dynamics and dissipation

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Jaakko Hosio Name of the doctoral dissertation Approaching the zero-temperature limit in superfluid dynamics and dissipation Publisher School of Science Unit O.V. Lounasmaa Laboratory Series Aalto University publication series DOCTORAL DISSERTATIONS 145/2012 Field of research Experimental condensed matter physics Manuscript su...

Relativistic entrainment matrix of a superfluid nucleon-hyperon mixture: The zero temperature limit

We calculate the relativistic entrainment matrix Yik at zero temperature for a nucleon-hyperon mixture composed of neutrons, protons, and and − hyperons, as well as electrons and muons. This matrix is analogous to the entrainment matrix (also termed mass-density matrix or Andreev-Bashkin matrix) of nonrelativistic theory. It is an important ingredient for modeling the pulsations of massive neut...

RECENT EXPERIMENTS IN SUPERFLUID 3He

Vortices in rotating superfluid 3He.

In this review we first present an introduction to 3He and to the ROTA collaboration under which most of the knowledge on vortices in superfluid 3He has been obtained. In the physics part, we start from the exceptional properties of helium at millikelvin temperatures. The dilemma of rotating superfluids is presented. In 4He and in 3He-B the problem is solved by nucleating an array of singular v...

Superfluid transition in superfluid 3He in radially compressed aerogel

The Spin Supercurrent and Bose-Einstein condensation of magnons similar to an atomic BEC was observed in 1984 in superfluid He-B. Recently we discovered 2 new types of BEC in superfluid He in deformed aerogel. The orbital part of the wave function orients along the deformation and changes the magnon-magnon interaction. In some cases it forms a magnon trap. We can do it for He-A by uniaxially co...