Universality and Scaling Limit of Weakly-Bound Tetramers
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
01/01/2012
|
Resumo |
The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two successive tetramer states, is revealed by considering a renormalized zero-range two-body interaction in bound state of four identical bosons. The tetramer energy spectrum is obtained by adding a boson to an Efimov bound state with energy B-3 in the unitary limit (for zero two-body binding energy or infinite two-body scattering length). Each excited N-th tetramer energy B-4((N)) is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio B-4((N))/B-3 = 4.6, which does not depend on N. The new scale can also be revealed by a resonance in the atom-trimer recombination process. |
Formato |
6 |
Identificador |
http://dx.doi.org/10.1063/1.3688794 Ix Latin American Symposium on Nuclear Physics and Applications. Melville: Amer Inst Physics, v. 1423, p. 6, 2012. 0094-243X http://hdl.handle.net/11449/24334 10.1063/1.3688794 WOS:000302767500021 |
Idioma(s) |
eng |
Publicador |
American Institute of Physics (AIP) |
Relação |
Ix Latin American Symposium on Nuclear Physics and Applications |
Direitos |
closedAccess |
Palavras-Chave | #Efimov Physics #Universality #Limit Cycle #Four-Boson Bound State #Four-Body Scale |
Tipo |
info:eu-repo/semantics/conferencePaper |