Hydrodynamic expansion of a strongly interacting fermi-fermi mixture.
作者： A. Trenkwalder , C. Kohstall , M. Zaccanti , D. Naik , A. I. Sidorov
DOI: 10.1103/PHYSREVLETT.106.115304
关键词:
摘要: We report on the expansion of an ultracold Fermi-Fermi mixture (6)Li and (40)K under conditions strong interactions controlled via interspecies Feshbach resonance. study after release from trap and, in a narrow magnetic-field range, we observe two phenomena related to hydrodynamic behavior. The common inversion aspect ratio is found be accompanied by collective effect where both species stick together expand jointly despite their widely different masses. Our work constitutes major experimental step for investigation many-body physics this novel strongly interacting quantum system.
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