Wigner bosonic molecules with repulsive interactions and harmonic confinement

P. CAPUZZI; N. H. MARCH; M. P. TOSI

PHYSICS LETTERS A

Año: 2005 vol. 339 p. 207 - 211

0375-9601

In earlier work, the momentum distribution of harmonically confined bosons has been calculated for interparticle interactions which are also harmonic for an arbitrary number N of repelling Bose particles. After a brief discussion of the pair function in this model, attention is also given, but now for N = 2, to the single-particle density for the repulsive interaction potential λ/r12 , 2 where r12 is the interboson distance and λ the repulsive coupling strength. The single-particle density is displayed for specific values of λ, with attention focusing on the limit of strong repulsive coupling. Throughout, the focus is on the fingerprints of Wigner bosonic molecules.