Random to Chaotic Statistic Transformation in Low-Field Fano-Feshbach Resonances of Cold Thulium Atoms.

  title={Random to Chaotic Statistic Transformation in Low-Field Fano-Feshbach Resonances of Cold Thulium Atoms.},
  author={Vassily A. Khlebnikov and D. A. Pershin and V. V. Tsyganok and Emil T. Davletov and Ivan Cojocaru and Elena Fedorova and Alexei A. Buchachenko and Andrey V. Akimov},
  journal={Physical review letters},
  volume={123 21},
Here, we report on the observation of a random to chaotic temperature transformation in the statistics of nearest-neighbor spacings of Fano-Feshbach resonances in the ultracold polarized gas of thulium-169 atoms. We associate this transformation to the appearance of so-called d resonances as well as the shift of other resonances with the temperature. In addition to this statistical change, it has been observed that the characters of s- and d-resonance temperature shifts are quite different: s… 

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