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Characterization of elastic scattering near a Feshbach resonance in rubidium 87

Thomas Volz·Stephan Dürr·Sebastian Ernst·Andreas Marte·Gerhard Rempe
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Abstract

The s-wave scattering length for elastic collisions between 87Rb atoms in the state |f,m_f>=|1,1> is measured in the vicinity of a Feshbach resonance near 1007 G. Experimentally, the scattering length is determined from the mean-field driven expansion of a Bose-Einstein condensate in a homogeneous magnetic field. The scattering length is measured as a function of the magnetic field and agrees with the theoretical expectation. The position and the width of the resonance are determined to be 1007.40 G and 0.20 G, respectively.

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Thomas Volz, Stephan Dürr, Sebastian Ernst, Andreas Marte, Gerhard Rempe. 2003-06-13. Characterization of elastic scattering near a Feshbach resonance in rubidium 87. https://doi.org/10.1103/physreva.68.010702

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