Preparing a highly degenerate fermi gas in an optical lattice

J. R. Williams, J. H. Huckans, R. W. Stites, E. L. Hazlett, K. M. O'Hara

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Abstract

We propose a method to prepare fermionic atoms in a three-dimensional optical lattice at unprecedentedly low temperatures and uniform filling factors. The process involves adiabatic loading of degenerate atoms into multiple energy bands of an optical lattice followed by a filtering stage whereby atoms from all but the lowest band are removed. Of critical importance is the use of a nonharmonic trapping potential to provide external confinement for the atoms. For realistic experimental parameters, this procedure will produce a Fermi gas in a lattice with a reduced temperature T/TF~0.003 and an entropy per particle of s~0.02kB.

Original languageEnglish (US)
Article number011610
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume82
Issue number1
DOIs
StatePublished - Jul 30 2010

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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    Williams, J. R., Huckans, J. H., Stites, R. W., Hazlett, E. L., & O'Hara, K. M. (2010). Preparing a highly degenerate fermi gas in an optical lattice. Physical Review A - Atomic, Molecular, and Optical Physics, 82(1), [011610]. https://doi.org/10.1103/PhysRevA.82.011610