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Measurement of the zero crossing in a Feshbach resonance of fermionic [Formula Presented]

Journal articles  - Journal Article
O’Hara, KM; Hemmer, SL; Granade, SR; Gehm, ME; Thomas, JE; Venturi, V; Tiesinga, E; Williams, CJ
Published in: Physical Review A Atomic Molecular and Optical Physics
January 1, 2002
Published version (DOI)

We measure a zero crossing in the scattering length of a mixture of the two lowest hyperfine states of [Formula Presented] To locate the zero crossing, we monitor the decrease in temperature and atom number arising from evaporation in a [Formula Presented] laser trap as a function of magnetic field B. The temperature decrease and atom loss are minimized for [Formula Presented] consistent with no evaporation. We also present preliminary calculations using potentials that have been constrained by the measured zero crossing and locate a broad Feshbach resonance at [Formula Presented] in agreement with previous theoretical predictions. In addition, our theoretical model predicts a second and much narrower Feshbach resonance near 55 mT. 5555 2002 The American Physical Society.

Duke Scholars

Michael E. Gehm
Author Michael E. Gehm Pierre R. Lamond Department of Electrical and Computer Engin ...
John E. Thomas
Author John E. Thomas Physics
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Published In

Physical Review A Atomic Molecular and Optical Physics

DOI

10.1103/PhysRevA.66.041401

EISSN

1094-1622

ISSN

1050-2947

Publication Date

January 1, 2002

Volume

66

Issue

4

Start / End Page

4

Related Subject Headings

  • General Physics
 

Citation

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O’Hara, K. M., Hemmer, S. L., Granade, S. R., Gehm, M. E., Thomas, J. E., Venturi, V., … Williams, C. J. (2002). Measurement of the zero crossing in a Feshbach resonance of fermionic [Formula Presented]. Physical Review A Atomic Molecular and Optical Physics, 66(4), 4. https://doi.org/10.1103/PhysRevA.66.041401
O’Hara, K. M., S. L. Hemmer, S. R. Granade, M. E. Gehm, J. E. Thomas, V. Venturi, E. Tiesinga, and C. J. Williams. “Measurement of the zero crossing in a Feshbach resonance of fermionic [Formula Presented].” Physical Review A Atomic Molecular and Optical Physics 66, no. 4 (January 1, 2002): 4. https://doi.org/10.1103/PhysRevA.66.041401.
O’Hara KM, Hemmer SL, Granade SR, Gehm ME, Thomas JE, Venturi V, et al. Measurement of the zero crossing in a Feshbach resonance of fermionic [Formula Presented]. Physical Review A Atomic Molecular and Optical Physics. 2002 Jan 1;66(4):4.
O’Hara, K. M., et al. “Measurement of the zero crossing in a Feshbach resonance of fermionic [Formula Presented].” Physical Review A Atomic Molecular and Optical Physics, vol. 66, no. 4, Jan. 2002, p. 4. Scopus, doi:10.1103/PhysRevA.66.041401.
O’Hara KM, Hemmer SL, Granade SR, Gehm ME, Thomas JE, Venturi V, Tiesinga E, Williams CJ. Measurement of the zero crossing in a Feshbach resonance of fermionic [Formula Presented]. Physical Review A Atomic Molecular and Optical Physics. 2002 Jan 1;66(4):4.

Published In

Physical Review A Atomic Molecular and Optical Physics

DOI

10.1103/PhysRevA.66.041401

EISSN

1094-1622

ISSN

1050-2947

Publication Date

January 1, 2002

Volume

66

Issue

4

Start / End Page

4

Related Subject Headings

  • General Physics