Scaling properties of universal tetramers

• Autor(a) principal: Hadizadeh, M. R. [UNESP]
• Data de Publicação: 2011
• Outros Autores: Yamashita, M. T. [UNESP], Tomio, Lauro [UNESP], Delfino, A., Frederico, T.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1103/PhysRevLett.107.135304; http://hdl.handle.net/11449/226534

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 |a|→∞ when the ratio between the tetramer and trimer energies is 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. © 2011 American Physical Society.