Renormalized atomic interaction and quadrupole excitations of cold Fermi gas near Feshbach resonance

Simple item page
dc.creatorSiu, Lai-Wa
dc.creatorKuo, T. T. S.
dc.creatorGelman, B. A.
dc.date2006-09-12
dc.date.accessioned2026-07-07T07:23:32Z
dc.date.available2026-07-07T07:23:32Z
dc.descriptionWe present a model space particle-hole Green's function calculation for the quadrupole excitations of cold Fermi gas near Feshbach resonance using a simple model where atoms are confined in a harmonic oscillator potential. Both the Tamm-Dancoff and random phase approximations are employed. By summing up exactly the ladder diagrams between a pair of interacting atoms to all orders, we obtain a renormalized atomic interaction which has well defined and identical limits as the scattering length tends to $\pm \infty$. The experimentally observed abrupt rise in the excitation spectrum and its associated large decay width are satisfactorily reproduced by our calculation.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0609290
dc.identifierhttp://arxiv.org/abs/cond-mat/0609290
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/116011
dc.subjectOther Condensed Matter
dc.titleRenormalized atomic interaction and quadrupole excitations of cold Fermi gas near Feshbach resonance
dc.typetext

Files

Collections

arXiv