Dipolar Stabilization of an Attractive Bose Gas in a One Dimensional Lattice

Details Dipolar Stabilization of an Attractive Bose Gas in a One Dimensional Lattice Dipolar Stabilization of an Attractive Bose Gas in a One Dimensional Lattice

2011-05-25

arxiv.org/abs/1105.5015v1

Phys. Rev. A 84, 053601 (2011)

Physics

Condensed Matter

Quantum Gases

Scientific paper

10.1103/PhysRevA.84.053601

We experimentally show that dipolar interaction can stabilize otherwise unstable many-body systems like an attractive Bose gas. In a one dimensional lattice the repulsive dipolar on-site interaction balances negative scattering lengths up to -17 Bohr radii and stabilizes the chromium Bose-Einstein condensate. For reduced lattice depths, the dipolar stabilization turns into destabilization. We probe the full cross-over between the two regimes and our results are in excellent agreement with theoretical calculations, which reveal significant dipolar inter-site interactions.

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