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No robust phases in aerogel: 3He-A with orientational disorder in the Ginzburg-Landau model (Comment on papers by I.A. Fomin on Robust phases)

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Abstract

In series of papers [2, 7], Fomin introduced and discussed the so-called robust phases in a system with frozen orientational disorder (with application to superfluid 3He in aerogel). We show that his consideration is based on the erroneous overestimation of the fluctuation energy, which comes from the interaction of the Goldstone modes with the frozen disorder. This interaction leads to the Imry-Ma effect, which destroys the orientational order but is unable to destroy the local structure of 3He-A. There is no ground for the robust phases.

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Authors and Affiliations

  1. Low-Temperature Laboratory, Helsinki University of Technology, FIN-02015, HUT, Finland

    G. E. Volovik

  2. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 117334, Russia

    G. E. Volovik

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  1. G. E. Volovik
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From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 81, No. 12, 2005, pp. 784–786.

Original English Text Copyright © 2005 by Volovik.

This article was submitted by the author in English.

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Volovik, G.E. No robust phases in aerogel: 3He-A with orientational disorder in the Ginzburg-Landau model (Comment on papers by I.A. Fomin on Robust phases). Jetp Lett. 81, 647–649 (2005). https://doi.org/10.1134/1.2034597

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  • DOI: https://doi.org/10.1134/1.2034597

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