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Superfluid 3He Simulation of Cosmic String Creation in the Early Universe

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Abstract

We discuss the first experimental observations of a deficit in the thermal energy released after the exothermic neutron-3 He nuclear reaction in superfluid 3 He at temperatures approaching 100μK. We propose that this deficit is associated with the creation of a vortex tangle as the liquid 3 He recrosses the superfluid transition. This process has many similarities with the theory of cosmic string creation during the GUT and electroweak transitions shortly after the Big Bang. Our measurements constitute the first quantitative test of defect creation via the cosmological Kibble mechanism for gauge symmetry breaking phase transitions and agree very well with the predictions of Zurek's scenario.

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Authors and Affiliations

  1. Centre de Recherches sur les Très Basses Températures, CNRS, BP166, 38042, Grenoble, France

    C. Bäuerle, Yu. M. Bunkov, S. N. Fisher & H. Godfrin

  2. School of Physics and Chemistry, Lancaster University, UK

    S. N. Fisher & G. R. Pickettt

Authors
  1. C. Bäuerle
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  2. Yu. M. Bunkov
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  3. S. N. Fisher
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  4. H. Godfrin
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  5. G. R. Pickettt
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Bäuerle, C., Bunkov, Y.M., Fisher, S.N. et al. Superfluid 3He Simulation of Cosmic String Creation in the Early Universe. Journal of Low Temperature Physics 110, 13–22 (1998). https://doi.org/10.1023/A:1022546213576

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  • DOI: https://doi.org/10.1023/A:1022546213576

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