Imaging of s and d partial-wave interference in quantum scattering of identical bosonic atoms

Details Imaging of s and d partial-wave interference in quantum scattering of identical bosonic atoms Imaging of s and d partial-wave interference in quantum scattering of identical bosonic atoms

2004-05-24

arxiv.org/abs/cond-mat/0405544v1

Physical Review Letters 93, 173201 (2004)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.173201

We report on the direct imaging of s and d partial-wave interference in cold collisions of atoms. Two ultracold clouds of Rb87 atoms were accelerated by magnetic fields to collide at energies near a d-wave shape resonance. The resulting halos of scattered particles were imaged using laser absorption. By scanning across the resonance we observed a marked evolution of the scattering patterns due to the energy dependent phase shifts for the interfering s and d waves. Since only two partial wave states are involved in the collision process the scattering yield and angular distributions have a simple interpretation in terms of a theoretical model.

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