通过相分离控制自旋畴的产生
Controlled spin domain creation by phase separation
摘要：
我们提出了一种在自旋为1的反铁磁玻色-爱因斯坦凝聚体中控制产生自旋畴的方法。该方法利用了自旋分量在外部电势中的相分离现象。通过使用一个适当的时间相关的潜力，自旋域的组合物可以创建，我们证明了在特定的情况下的双阱和周期性的潜力。与依赖于空间非均匀磁场的其他方法相比，这里的畴结构完全由光场决定，这使得该方法通用且可重构。它允许创建各种大小的域，空间分辨率仅受自旋愈合长度的限制。
英文摘要：
We demonstrate a method of controlled creation of spin domains in spin-1 antiferromagnetic Bose-Einstein condensates. The method exploits the phenomenon of phase separation of spin components in an external potential. By using an appropriate time dependent potential, a composition of spin domains can be created, as we demonstrate in the particular cases of a double well and a periodic potential. In contrast to other methods, which rely on spatially inhomogeneous magnetic fields, here the domain structure is completely determined by the optical fields, which makes the method versatile and reconfigurable. It allows for creation of domains of various sizes, with the spatial resolution limited by the spin healing length only.
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