Robust superfluid phases of 3He in aerogel

Abstract

Within a phenomenological approach possible forms of the order parameter of the superfluid phases of 3He in a vicinity of the transition temperature are discussed. Effect of aerogel is described by a random tensor field interacting with the orbital part of the order parameter. With respect to their interaction with the random tensor field a group of "robust" order parameters which can maintain long-range order in a presence of the random field is specified. Robust order parameters, corresponding to Equal Spin Pairing (ESP) states are found and proposed as candidates for the observed A-like superfluid phase of liquid 3He in aerogel.

5 pages, prepared for QFS 2003

Cited by in corpus (7)

• Strong Coupling Corrections to the Ginzburg-Landau Theory of Superfluid ^{3}He
• Impurity Effects of Aerogel in Superfluid ${}^3$He
• Longitudinal NMR and Spin States in the A-like Phase of 3He in Aerogel
• Comment on "Order parameter of A-like 3He phase in aerogel"
• Longitudinal and Transverse NMR in Superfluid 3He in Anisotropic Aerogel
• Ultrasound attenuation of superfluid ${}^3$He in aerogel
• Superfluid phases of 3He in aerogel