Evidence for an excited-state efimov trimer in a three-component fermi gas

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

doi:10.1103/PhysRevLett.103.130404

Evidence for an excited-state efimov trimer in a three-component fermi gas

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

Physics

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

173 Scopus citations

Abstract

We observe enhanced three-body recombination in a three-component Li6 Fermi gas attributable to an excited Efimov trimer state intersecting the three-atom scattering threshold near 895 G. From measurements of the recombination rate we determine the Efimov parameters κ* and η* for the universal region above 600 G which includes three overlapping Feshbach resonances. The value of κ* also predicts the locations of loss features previously observed near 130 and 500 G suggesting they are associated with a ground-state Efimov trimer near threshold. We also report on the realization of a degenerate three-component Fermi gas with approximate SU(3) symmetry.

Original language	English (US)
Article number	130404
Journal	Physical review letters
Volume	103
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.103.130404
State	Published - Sep 24 2009

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.103.130404

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title = "Evidence for an excited-state efimov trimer in a three-component fermi gas",

abstract = "We observe enhanced three-body recombination in a three-component Li6 Fermi gas attributable to an excited Efimov trimer state intersecting the three-atom scattering threshold near 895 G. From measurements of the recombination rate we determine the Efimov parameters κ* and η* for the universal region above 600 G which includes three overlapping Feshbach resonances. The value of κ* also predicts the locations of loss features previously observed near 130 and 500 G suggesting they are associated with a ground-state Efimov trimer near threshold. We also report on the realization of a degenerate three-component Fermi gas with approximate SU(3) symmetry.",

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AU - Williams, J. R.

AU - Hazlett, E. L.

AU - Huckans, J. H.

AU - Stites, R. W.

AU - Zhang, Y.

AU - O'Hara, K. M.

PY - 2009/9/24

Y1 - 2009/9/24

N2 - We observe enhanced three-body recombination in a three-component Li6 Fermi gas attributable to an excited Efimov trimer state intersecting the three-atom scattering threshold near 895 G. From measurements of the recombination rate we determine the Efimov parameters κ* and η* for the universal region above 600 G which includes three overlapping Feshbach resonances. The value of κ* also predicts the locations of loss features previously observed near 130 and 500 G suggesting they are associated with a ground-state Efimov trimer near threshold. We also report on the realization of a degenerate three-component Fermi gas with approximate SU(3) symmetry.

AB - We observe enhanced three-body recombination in a three-component Li6 Fermi gas attributable to an excited Efimov trimer state intersecting the three-atom scattering threshold near 895 G. From measurements of the recombination rate we determine the Efimov parameters κ* and η* for the universal region above 600 G which includes three overlapping Feshbach resonances. The value of κ* also predicts the locations of loss features previously observed near 130 and 500 G suggesting they are associated with a ground-state Efimov trimer near threshold. We also report on the realization of a degenerate three-component Fermi gas with approximate SU(3) symmetry.

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DO - 10.1103/PhysRevLett.103.130404

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JO - Physical review letters

JF - Physical review letters

IS - 13

M1 - 130404

ER -

Evidence for an excited-state efimov trimer in a three-component fermi gas

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