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

J. Rysti; J. T. Mäkinen; S. Autti; T. Kamppinen; G. E. Volovik; V. B. Eltsov

doi:10.1103/PhysRevLett.127.115702

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

J. Rysti, J. T. Mäkinen^*, S. Autti, T. Kamppinen, G. E. Volovik, V. B. Eltsov

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

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.

Original language	English
Article number	115702
Number of pages	6
Journal	Physical Review Letters
Volume	127
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.127.115702
Publication status	Published - 8 Sept 2021
MoE publication type	A1 Journal article-refereed

Funding

We thank V. V. Dmitriev for providing the NAFEN sample. This Letter has been supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 694248) and by Academy of Finland Project No. 332964. S. A. acknowledges support from the Jenny and Antti Wihuri Foundation via the Council of Finnish Foundations, and T. K. acknowledges support from the Finnish Cultural Foundation. This research made use of the OtaNano Low Temperature Laboratory infrastructure of Aalto University, which is part of the European Microkelvin Platform (European Union’s Horizon 2020 Grant No. 824109).

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10.1103/PhysRevLett.127.115702

Suppressing the Kibble-Zurek Mechanism by a Symmetry-Violating BiasFinal published version, 542 KB

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title = "Suppressing the Kibble-Zurek Mechanism by a Symmetry-Violating Bias",

abstract = "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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note = "| openaire: EC/H2020/694248/EU//TOPVAC Funding Information: We thank V. V. Dmitriev for providing the NAFEN sample. This Letter has been supported by the European Research Council (ERC) under the European Union{\textquoteright}s Horizon 2020 research and innovation program (Grant Agreement No. 694248) and by Academy of Finland Project No. 332964. S. A. acknowledges support from the Jenny and Antti Wihuri Foundation via the Council of Finnish Foundations, and T. K. acknowledges support from the Finnish Cultural Foundation. This research made use of the OtaNano Low Temperature Laboratory infrastructure of Aalto University, which is part of the European Microkelvin Platform (European Union{\textquoteright}s Horizon 2020 Grant No. 824109). Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

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AU - Volovik, G. E.

AU - Eltsov, V. B.

N1 - | openaire: EC/H2020/694248/EU//TOPVAC Funding Information: We thank V. V. Dmitriev for providing the NAFEN sample. This Letter has been supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 694248) and by Academy of Finland Project No. 332964. S. A. acknowledges support from the Jenny and Antti Wihuri Foundation via the Council of Finnish Foundations, and T. K. acknowledges support from the Finnish Cultural Foundation. This research made use of the OtaNano Low Temperature Laboratory infrastructure of Aalto University, which is part of the European Microkelvin Platform (European Union’s Horizon 2020 Grant No. 824109). Publisher Copyright: © 2021 American Physical Society.

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N2 - 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.

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

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WEYLFLUID: Weyl and flat-band fermions in topological superfluids

TOPVAC: From Topological Matter to Relativistic Quantum Vacuum

OtaNano

OtaNano – Low Temperature Laboratory

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

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WEYLFLUID: Weyl and flat-band fermions in topological superfluids

TOPVAC: From Topological Matter to Relativistic Quantum Vacuum

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OtaNano

OtaNano – Low Temperature Laboratory

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