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arXiv · 1803.03507

Dynamic hysteresis from bistability in an antiferromagnetic spinor condensate

Tomasz Swisłocki·Andrzej Zembrzuski·Michał Matuszewski·Emilia Witkowska
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Abstract

We study the emergence of hysteresis during the process of quantum phase transition from an antiferromagnetic to a phase-separated state in a spin-1 Bose Einstein condensate of ultracold atoms. We explicitly demonstrate the appearance of a hysteresis loop with various quench times showing that it is rate-independent for large magnetizations only. In other cases scaling of the hysteresis loop area is observed, which we explain by using the Kibble-Zurek theory in the limit of small magnetization. The effect of an external harmonic trapping potential is also discussed.

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Tomasz Swisłocki, Andrzej Zembrzuski, Michał Matuszewski, Emilia Witkowska. 2018-03-09. Dynamic hysteresis from bistability in an antiferromagnetic spinor condensate. https://doi.org/10.1103/physreva.97.033629

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