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Dynamics of the modified Kibble-Zurek mechanism in antiferromagnetic spin-1 condensates

机译:反铁磁Spin-1冷凝物中改进的Kibble-Zurek机理的动力学

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摘要

We investigate the dynamics and outcome of a quantum phase transition from an antiferromagnetic to a phase-separated ground state in a spin-1 Bose-Einstein condensate of ultracold atoms. We explicitly demonstrate double universality in the dynamics within experiments with various quench times. Furthermore, we show that spin domains created in the nonequilibrium transition constitute a set of mutually incoherent quasicondensates. The quasicondensates appear to be positioned in a semiregular fashion, which is a result of the conservation of local magnetization during the postselection dynamics.
机译:我们研究了自旋1玻色-爱因斯坦超冷原子冷凝物中从反铁磁性到相分离基态的量子相变的动力学和结果。我们在具有不同淬灭时间的实验中明确证明了动力学的双重通用性。此外,我们表明,在非平衡转变中产生的自旋域构成了一组相互不相干的准缩聚物。准缩合物似乎以半规则的方式定位,这是在选择后动态过程中保留局部磁化强度的结果。

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