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Suppressing the Kibble-Zurek Mechanism by a Symmetry-Violating Bias

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  • J. Rysti
  • J.T. Mäkinen
  • S. Autti
  • T. Kamppinen
  • G.E. Volovik
  • V.B. Eltsov
Article number115702
<mark>Journal publication date</mark>10/09/2021
<mark>Journal</mark>Physical review letters
Issue number11
Number of pages6
Publication StatusPublished
Early online date8/09/21
<mark>Original language</mark>English


The formation of topological defects in continuous phase transitions is driven by the Kibble-Zurek mechanism. Here we study the formation of single- and half-quantum vortices during transition to the polar phase of He3 in the presence of a symmetry-breaking bias provided by the applied magnetic field. We find that vortex formation is suppressed exponentially when the length scale associated with the bias field becomes smaller than the Kibble-Zurek length. We thus demonstrate an experimentally feasible shortcut to adiabaticity - an important aspect for further understanding of phase transitions as well as for engineering applications such as quantum computers or simulators.

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© 2021 American Physical Society