Publicação: Scaling Properties of Universal Tetramers
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2011-09-23
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Amer Physical Soc
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We evidence the existence of a universal correlation between the binding energies of successive four-boson bound states (tetramers), for large two-body scattering lengths (a), related to an additional scale not constrained by three-body Efimov physics. Relevant to ultracold atom experiments, the atom-trimer relaxation peaks for vertical bar a vertical bar -> infinity when the ratio between the tetramer and trimer energies is similar or equal to 4.6 and a new tetramer is formed. The new scale is also revealed for a < 0 by the prediction of a correlation between the positions of two successive peaks in the four-atom recombination process.
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Physical Review Letters. College Pk: Amer Physical Soc, v. 107, n. 13, p. 5, 2011.
