Sound Propagation and Transport Properties of Liquid 3He in Aerogel

Author(s): D. Rainer and J. A. Sauls
Comments: Proc. of Quantum Fluids and Solids-1997 (Paris); 7 pages with 4 figures.
Journal: J. Low Temp. Phys. 110, 525 (1998) [DOI]

Superfluid 3He confined in aerogel offers a unique chance to study the effects of a short mean free path on the properties of a well defined superfluid Fermi liquid with anisotropic pairing. Transport coefficients and collective excitations, e.g. longitudinal sound, are expected to react sensitively to a short mean free path and to offer the possibility for testing recently developed models for quasiparticle scattering at aerogel strands. Sound experiments, together with a theoretical analysis based on Fermi liquid theory for systems with short mean free paths, should give valuable insights into the interaction between superfluid 3He and aerogel.

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