Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia.
Phys Rev Lett. 2015 Aug 14;115(7):075303. doi: 10.1103/PhysRevLett.115.075303.
We consider two-dimensional bosonic dipoles oriented perpendicularly to the plane. On top of the usual two-body contact and long-range dipolar interactions we add a contact three-body repulsion as expected, in particular, for dipoles in the bilayer geometry with tunneling. The three-body repulsion is crucial for stabilizing the system, and we show that our model allows for stable continuous space supersolid states in the dilute regime and calculate the zero-temperature phase diagram.
我们考虑垂直于平面的二维玻色偶极子。除了通常的两体接触和远程偶极相互作用外，我们还添加了预期的三体接触排斥，特别是对于具有隧道的双层几何形状中的偶极子。三体排斥对于稳定系统至关重要，我们表明我们的模型允许在稀释 regime 下稳定的连续空间超固态，并计算了零温相图。
