Stable Dilute Supersolid of Two-Dimensional Dipolar Bosons

Zhen-Kai Lu, Yun Li, D. S. Petrov, and G. V. Shlyapnikov

Phys. Rev. Lett. 115, 075303 – Published 14 August 2015

Abstract

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.

Received 3 October 2014

DOI:https://doi.org/10.1103/PhysRevLett.115.075303

Authors & Affiliations

Zhen-Kai Lu¹, Yun Li², D. S. Petrov³, and G. V. Shlyapnikov^3,4,5,6

¹Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany
²Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
³Université Paris-Sud, CNRS, LPTMS, UMR8626, Orsay F-91405, France
⁴Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
⁵Russian Quantum Center, Novaya Street 100, Skolkovo, Moscow Region 143025, Russia
⁶Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

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Issue

Vol. 115, Iss. 7 — 14 August 2015

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