Controlling collisions of ultracold atoms with dc electric fields

Abstract

It is demonstrated that elastic collisions of ultracold atoms forming a heteronuclear collision complex can be manipulated by laboratory practicable dc electric fields. The mechanism of electric field control is based on the interaction of the instantaneous dipole moment of the collision pair with external electric fields. It is shown that this interaction is dramatically enhanced in the presence of a p-wave shape or Feshbach scattering resonance near the collision threshold, which leads to novel electric-field-induced Feshbach resonances.

References in corpus (4)

• Observation of Bose-Einstein Condensation of Molecules
• Tuning the scattering length with an optically induced Feshbach resonance
• Observation of dipole-dipole interaction in a degenerate quantum gas
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