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- W2062997683 abstract "Through an extensive numerical study, we find that the low-lying, quasidegenerate eigenenergies of weakly interacting trapped N bosons with total angular momentum L are given in the case of small $L/N$ and sufficiently small L by $E=Lensuremath{Elzxh}ensuremath{omega}+g[N(Nensuremath{-}L/2ensuremath{-}1)+1.59n(nensuremath{-}1)/2],$ where $ensuremath{omega}$ is the frequency of the trapping potential and g is the strength of the repulsive contact interaction. The last term arises from the pairwise repulsive interaction among n octupole excitations and describes the lowest-lying excitation spectra from the yrast line. In this case, the quadrupole modes do not interact with themselves and, together with the octupole modes, exhaust the low-lying spectra that are separated from others by energy gaps linear in N." @default.
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- W2062997683 date "2001-03-16" @default.
- W2062997683 modified "2023-09-23" @default.
- W2062997683 title "Low-lying excitations from the yrast line of weakly interacting trapped bosons" @default.
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- W2062997683 doi "https://doi.org/10.1103/physreva.63.043610" @default.
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