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- W1526748428 abstract "We propose an unconventional description for the ground state and collective oscillations of the two-component normal Fermi gas with two-body zero-range interactions. The many-body problem can be accurately reduced to a linear, one-dimensional Schroedinger equation in a single collective coordinate, the hyperradius R of the N-atom system which is the root mean square radius. The calculated properties of the Fermi gas ground state are shown to agree accurately with results from the Hartree-Fock (HF) approximation over a wide range of interspecies scattering lengths. The breathing mode excitation frequency deviates qualitatively from HF predictions, but we show that this reflects a failure of the HF approach for this observable." @default.
- W1526748428 created "2016-06-24" @default.
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- W1526748428 date "2005-10-17" @default.
- W1526748428 modified "2023-09-27" @default.
- W1526748428 title "Collective Behavior of the Closed-Shell Fermi Gas" @default.
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