Loading and compression of a single two-dimensional Bose gas in an optical accordion
Authors: Ville J. L., Bienaime T., Saint-Jalm R., Corman L., Aidelsburger M., Chomaz L., Kleinlein K., Perconte D., Nascimbene S., Dalibard J., Beugnon J.
Autors Affiliation: UPMC Sorbonne Univ, ENS PSL Res Univ, CNRS, Lab Kastler Brossel,Coll France, 11 Pl Marcelin Berthelot, F-75005 Paris, France; Univ Trento, INO CNR BEC Ctr, I-38123 Povo, Italy; Univ Trento, Dipartimento Fis, I-38123 Povo, Italy; ETH, Inst Quantum Elect, CH-8093 Zurich, Switzerland; Univ Innsbruck, Inst Expt Phys, Tech Str 25, A-6020 Innsbruck, Austria; Univ Paris Saclay, Univ Paris Sud, Unite Mixte Phys, CNRS,Thales, F-91767 Palaiseau, France
Abstract: The experimental realization of two-dimensional (2D) Bose gases with a tunable interaction strength is an important challenge for the study of ultracold quantum matter. Here we report on the realization of an optical accordion creating a lattice potential with a spacing that can be dynamically tuned between 11 and 2 mu m. We show that we can load ultracold Rb-87 atoms into a single node of this optical lattice in the large spacing configuration and then decrease nearly adiabatically the spacing to reach a strong harmonic confinement with frequencies larger than omega(z)/2 pi = 10 kHz. Atoms are trapped in an additional flat-bottom in-plane potential that is shaped with a high resolution. By combining these tools we create custom-shaped uniform 2D Bose gases with tunable confinement along the transverse direction and hence with a tunable interaction strength.
Journal/Review: PHYSICAL REVIEW A
Volume: 95 (1) Pages from: 013632-1 to: 013632-7
KeyWords: ATOMIC GASES; SYSTEMS; PHYSICSDOI: 10.1103/PhysRevA.95.013632Citations: 21data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here