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Article Dans Une Revue Physical Review A Année : 2017

Loading and compression of a single two-dimensional Bose gas in an optical accordion

Résumé

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 μm. We show that we can load ultracold 87Rb 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 ωz/2π=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.

Dates et versions

hal-03746110 , version 1 (04-08-2022)

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Citer

J. L. Ville, T. Bienaimé, R. Saint-Jalm, L. Corman, M. Aidelsburger, et al.. Loading and compression of a single two-dimensional Bose gas in an optical accordion. Physical Review A, 2017, 95 (1), pp.013632. ⟨10.1103/PhysRevA.95.013632⟩. ⟨hal-03746110⟩
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