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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Suppressing the Kibble-Zurek Mechanism by a Symmetry-Violating Bias
AU - Rysti, J.
AU - Mäkinen, J.T.
AU - Autti, S.
AU - Kamppinen, T.
AU - Volovik, G.E.
AU - Eltsov, V.B.
N1 - © 2021 American Physical Society
PY - 2021/9/10
Y1 - 2021/9/10
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.
KW - Quantum computers
KW - Applied magnetic fields
KW - Continuous phase transitions
KW - Engineering applications
KW - Kibble-Zurek mechanism
KW - Quantum vortex
KW - Symmetry-breaking
KW - Topological defect
KW - Vortex formation
KW - Vortex flow
U2 - 10.1103/PhysRevLett.127.115702
DO - 10.1103/PhysRevLett.127.115702
M3 - Journal article
VL - 127
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 11
M1 - 115702
ER -