Robust superfluid phases of 3He in aerogel

Details Robust superfluid phases of 3He in aerogel Robust superfluid phases of 3He in aerogel

2003-07-24

arxiv.org/abs/cond-mat/0307618v1

Physics

Condensed Matter

Superconductivity

5 pages, prepared for QFS 2003

Scientific paper

10.1023/B:JOLT.0000012642.74907.

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.

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