Stable dilute supersolid of two-dimensional dipolar bosons

Zhen-Kai Lu ¹ Yun Li ² D. S. Petrov ³ G. V. Shlyapnikov ^{4, 5, 3, 6}

Physical Review Letters, American Physical Society, 2015, 115, pp.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.

• 1. Max Planck Institute für quantenoptik
• 2. Swinburne University of Technology
• 3. LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques
• 4. Russian Quantum Center
• 5. Wuhan Institute of Physics and Mathematics
• 6. Van der Waals – Zeeman Institute