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

V. Ruuska; P. Törmä

doi:10.1088/1367-2630/6/1/059

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

V. Ruuska^*, P. Törmä

^*Corresponding author for this work

Not published at Aalto University

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Scopus)

Abstract

We have considered 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 centre. For different parameter regimes, the system presents dipole oscillations, damped oscillations around the replaced centre as well as localization. The behaviour can be explained by a change in the energy spectrum from linear to quadratic.

Original language	English
Pages (from-to)	1-11
Number of pages	11
Journal	New Journal of Physics
Volume	6
DOIs	https://doi.org/10.1088/1367-2630/6/1/059
Publication status	Published - 10 Jun 2004
MoE publication type	A1 Journal article-refereed

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10.1088/1367-2630/6/1/059

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abstract = "We have considered 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 centre. For different parameter regimes, the system presents dipole oscillations, damped oscillations around the replaced centre as well as localization. The behaviour can be explained by a change in the energy spectrum from linear to quadratic.",

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N2 - We have considered 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 centre. For different parameter regimes, the system presents dipole oscillations, damped oscillations around the replaced centre as well as localization. The behaviour can be explained by a change in the energy spectrum from linear to quadratic.

AB - We have considered 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 centre. For different parameter regimes, the system presents dipole oscillations, damped oscillations around the replaced centre as well as localization. The behaviour can be explained by a change in the energy spectrum from linear to quadratic.

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