Universal few-body physics in a harmonic trap
arXiv:1008.0551 · doi:10.1016/j.crhy.2010.11.011
Abstract
Few-body systems with resonant short-range interactions display universal properties that do not depend on the details of their structure or their interactions at short distances. In the three-body system, these properties include the existence of a geometric spectrum of three-body Efimov states and a discrete scaling symmetry. Similar universal properties appear in 4-body and possibly higher-body systems as well. We set up an effective theory for few-body systems in a harmonic trap and study the modification of universal physics for 3- and 4-particle systems in external confinement. In particular, we focus on systems where the Efimov effect can occur and investigate the dependence of the 4-body spectrum on the experimental tuning parameters.
arXiv comment20 pages, 10 figures, final version, new references added
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Cited by in corpus (17)
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