Quantum transport of non-interacting Fermi gas in an optical lattice combined with harmonic trapping

Details Quantum transport of non-interacting Fermi gas in an optical lattice combined with harmonic trapping Quantum transport of non-interacting Fermi gas in an optical lattice combined with harmonic trapping

2004-03-17

arxiv.org/abs/cond-mat/0403429v2

New Journal of Physics 6, 59 (2004)

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 3 figures, published version

Scientific paper

10.1088/1367-2630/6/1/059

We consider a non-interacting Fermi gas in a combined harmonic and periodic potential. We calculate the energy spectrum and simulate the motion of the gas after sudden replacement of the trap center. For different parameter regimes, the system presents dipole oscillations, damped oscillations around the replaced center, and localization. The behaviour is explained by the change of the energy spectrum from linear to quadratic.

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