论文标题

千里布尔·祖雷克(Kibble-Zurek

Universal breakdown of Kibble-Zurek scaling in fast quenches across a phase transition

论文作者

Zeng, Hua-Bi, Xia, Chuan-Yin, del Campo, Adolfo

论文摘要

连续相变的穿越会导致在慢速淬灭极限中描述的千里布尔·泽尔克机构(KZM)描述的拓扑缺陷的形成。 KZM预测缺陷密度的通用幂律缩放是淬火时间的函数。我们专注于在快速淬火中观察到的KZM的偏差并建立其普遍性。尽管KZM缩放率保持在临界速率以下,但对于更快的淬灭,缺陷密度和冻结时间与淬火率无关,并显示出具有控制参数的最终值的通用幂律缩放。这些预测在经典和量子域的几个范式场景中得到了验证。

The crossing of a continuous phase transition gives rise to the formation of topological defects described by the Kibble-Zurek mechanism (KZM) in the limit of slow quenches. The KZM predicts a universal power-law scaling of the defect density as a function of the quench time. We focus on the deviations from KZM experimentally observed in rapid quenches and establish their universality. While KZM scaling holds below a critical quench rate, for faster quenches the defect density and the freeze-out time become independent of the quench rate and exhibit a universal power-law scaling with the final value of the control parameter. These predictions are verified in several paradigmatic scenarios in both the classical and quantum domains.

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