猝灭铁磁旋量凝聚体中的畴渗流
Domain percolation in a quenched ferromagnetic spinor condensate
摘要：
我们表明，易轴（EA）的磁畴形成的淬火铁磁旋量凝聚体描述的逾渗理论。我们引入了一个广义的自旋旋转的比例不同的积极和消极的EA域，使我们能够探索域渗透。利用模拟，我们研究了有限尺寸标度的行为，以提取相关长度临界指数和过渡点。我们分析了我们的结果的灵敏度，系统的早期动力学，二次塞曼能量，和阈值条件用于定义的积极（反）域。
英文摘要：
We show that the easy-axis (EA) magnetic domains formed in a quenched ferromagnetic spinor condensate are described by percolation theory. We introduce a generalized spin rotation to vary the proportion of positive and negative EA domains, allowing us to explore domain percolation. Using simulations we investigate the finite-size scaling behaviour to extract the correlation length critical exponent and the transition point. We analyse the sensitivity of our results to the early-time dynamics of the system, the quadratic Zeeman energy, and the threshold condition used to define the positive (percolating) domains.
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