Preparing a highly degenerate fermi gas in an optical lattice

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

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

Fingerprint

gases
atoms
energy bands
trapping
entropy
temperature

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Williams, J. R. ; Huckans, J. H. ; Stites, R. W. ; Hazlett, E. L. ; O'Hara, Kenneth. / Preparing a highly degenerate fermi gas in an optical lattice. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2010 ; Vol. 82, No. 1.
@article{69bbccf9980a4885833b96e6eeba0710,
title = "Preparing a highly degenerate fermi gas in an optical lattice",
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.",
author = "Williams, {J. R.} and Huckans, {J. H.} and Stites, {R. W.} and Hazlett, {E. L.} and Kenneth O'Hara",
year = "2010",
month = "7",
day = "30",
doi = "10.1103/PhysRevA.82.011610",
language = "English (US)",
volume = "82",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "1",

}

Preparing a highly degenerate fermi gas in an optical lattice. / Williams, J. R.; Huckans, J. H.; Stites, R. W.; Hazlett, E. L.; O'Hara, Kenneth.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 82, No. 1, 011610, 30.07.2010.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preparing a highly degenerate fermi gas in an optical lattice

AU - Williams, J. R.

AU - Huckans, J. H.

AU - Stites, R. W.

AU - Hazlett, E. L.

AU - O'Hara, Kenneth

PY - 2010/7/30

Y1 - 2010/7/30

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=77955098175&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955098175&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.82.011610

DO - 10.1103/PhysRevA.82.011610

M3 - Article

AN - SCOPUS:77955098175

VL - 82

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 1

M1 - 011610

ER -