Testing universality of Efimov physics across broad and narrow Feshbach resonances
نویسندگان
چکیده
منابع مشابه
Test of the universality of the three-body Efimov parameter at narrow Feshbach resonances.
We measure the critical scattering length for the appearance of the first three-body bound state, or Efimov three-body parameter, at seven different Feshbach resonances in ultracold ^{39}K atoms. We study both intermediate and narrow resonances, where the three-body spectrum is expected to be determined by the nonuniversal coupling of two scattering channels. Instead, our observed ratio of the ...
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In recent years extensive theoretical and experimental studies of universal few-body physics have advanced our understanding of universal Efimov physics. Whereas theory had been the driving force behind our understanding of Efimov physics for decades, recent experiments have contributed an unexpected discovery. Specifically, measurements have found that the so-called three-body parameter determ...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2017
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys4130