Superfluid quantum criticality in liquid ³He in anisotropic aerogel

中島, 大, 池田, 隆介

説明

In the novel superfluid polar phase realized in liquid ³He in highly anisotropic aerogels, a quantum transition to the polar-distorted A (PdA) phase may occur at low but finite pressure Pc(0). It is shown that the nontrivial quantum dynamics of the critical fluctuation of PdA order is induced by the presence of both columnar impurity scattering leading to Anderson's theorem for the polar phase and the line node of the quasiparticle gap in the state, and that, in contrast to the situation of the normal to B-phase transition in isotropic aerogels, a weakly divergent behavior of the compressibility appears in the quantum critical region close to Pc(0).

収録刊行物

Physical Review B

Physical Review B 103 (6), 2021-02

American Physical Society (APS)

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詳細情報詳細情報について

CRID: 1050573243017399168

NII論文ID: 120007193006

ISSN: 24699969; 24699950

HANDLE: 2433/268035

本文言語コード: en

資料種別: journal article

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