期刊
NEW JOURNAL OF PHYSICS
卷 19, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/aa6653
关键词
non-equilibrium phase transition; Kibble-Zurek mechanism; quantum simulator
资金
- DFG [192/19-2]
- DAAD [57052334]
- government of Canada
- Deutsche Forschungsgemeinschaft
- TU Dortmund Technical University
Systems passing through quantum critical points at finite rates have a finite probability of undergoing transitions between different eigenstates of the instantaneous Hamiltonian. This mechanism was proposed by Kibble as the underlying mechanism for the formation of topological defects in the early universe and by Zurek for condensed matter systems. Here, we use a system of nuclear spins as an experimental quantum simulator undergoing a non-equilibrium quantum phase transition. The experimental data confirm the validity of the Kibble-Zurek mechanism of defect formation.
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