发表机构
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences; Department of Basic Courses, Naval University of Engineering; State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Collaborative Innovation Center of Extreme Optics, Shanxi University（中国科学院物理研究所凝聚态物理国家实验室; 海军工程大学基础部; 山西大学光电工程学院量子光学与光量子器件国家重点实验室极端光学协同创新中心）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究在扭曲双层光学晶格中实现超冷玻色子莫尔液滴，发现液滴形成增强莫尔图案可见性，并演示了动态生成与分叉现象，为模拟莫尔物理提供平台。
AI 中文摘要
我们报道了在自旋依赖光学晶格中二维超冷玻色子出现莫尔液滴的现象，该晶格有效实现了扭曲双层构型。我们表明，液滴的形成显著增强了密度分布中莫尔图案的可见性，即使在异常弱的晶格势下也是如此。莫尔图案同样可以通过增加晶格深度来增强，然而，这也会诱导液滴扩散，其特征是密度分布展宽。此外，我们演示了通过移动晶格拖动小液滴来动态生成莫尔图案。在适当的速度下，液滴发生分叉，并在周期性时间间隔内表现出明显的莫尔图案。我们的结果确立了超冷液滴作为模拟相互作用莫尔物理（特别是莫尔晶格与束缚态形成之间的相互作用）的引人注目的平台。
英文摘要
We report the emergence of Moiré droplet in two-dimensional ultracold bosons subjected to a spin-dependent optical lattice, effctively realizing a twisted-bilayer configuration. We show that the droplet formation dramatically enhances the visibility of Moiré pattern in the density profile, even for exceptionally weak lattice potentials. The Moiré pattern can be enhanced similarly by increasing the lattice depth, which, however, also induces droplet diffusion characterized by a spreading density profile. Furthermore, we demonstrate a dynamical generation of Moiré pattern by dragging a small droplet through a moving lattice. At appropriate velocities, the droplet undergoes bifurcation and exhibits pronounced Moiré pattern within periodic time intervals. Our results establish the ultracold droplet as a compelling platform for simulating interacting Moiré physics, particularly the interplay between Moiré lattice and bound-state formation.
Comments6+2 pages, 4 figures
