期刊
PHYSICAL REVIEW A
卷 82, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.82.011610
关键词
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资金
- AFOSR [FA9550-08-1-0069]
- NSF [PHY 07-01443]
- ARO [W911NF-06-1-0398]
- DARPA
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/T-F similar to 0.003 and an entropy per particle of s similar to 0.02 k(B).
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