论文标题
偶极冷凝物中液滴的超酚样正方形和蜂窝状晶格结晶
Supersolid-like square- and honeycomb-lattice crystallization of droplets in a dipolar condensate
论文作者
论文摘要
我们展示了液滴的超固体平方形和蜂窝状和蜂窝状的结晶，除了圆柱对称的quasi-two-immensimentional-drappiention二极管二极化的二色偏度式的二高二极管二极管二极管二极管二极管二极管二极管中，除了使用量子模型超过量子型模型中，在圆柱对称的quasi-two-immentiment-two-drappiention-two-imean-firaper-fircation中，除了质量型二色型中，还包括质量 - 型号 - 元素中的模型。这三种类型的液滴结晶可能出现在相同的原子相互作用和相同的陷阱频率上。所有三个结晶的能量$ e $作为数字$ n $原子的函数满足通用缩放关系$ e \ sim n^{0.4} $，这表明液滴的所有三个布置都应在现象学兴趣上是有能力的可能过程。方形结晶状态的状态可能具有中央位点占据或空置状态，分别对应于平等对称或奇偶式抗对称状态。正方形的状态与被占用的中央位点和三角形晶格结晶状态（对于固定的$ n $）状态构成了两个准排分基态，而其他状态则是低较低的激发状态。这使得与被占领的中央站点的方形晶格结晶成为将来实验观察的理想候选者。
We demonstrate a supersolid-like spatially-periodic square- and honeycomb-lattice crystallization of droplets, in addition to the commonly-studied triangular-lattice crystallization, in a cylindrically-symmetric quasi-two-dimensional trapped dipolar condensate, using a beyond-mean-field model including a quantum-fluctuation Lee-Huang-Yang-type interaction. These three types of crystallization of droplets may appear for the same atomic interactions and the same trap frequencies. The energy $E$ of all three crystallization as a function of number $N$ of atoms satisfy the universal scaling relation $E\sim N^{0.4}$ indicating that all three arrangements of the droplets should be energetically probable processes of phenomenological interest. The state of square-lattice crystallization may have the central site occupied or unoccupied, corresponding to a parity-symmetric or parity-antisymmetric state, respectively. The state of square-lattice crystallization with the occupied central site and the state of triangular-lattice crystallization, for a fixed $N$, constitute two quasi-degenerate ground states while the other states are low-lying excited states. This makes the square-lattice crystallization with the occupied central site an ideal candidate for future experimental observation.
