Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures

T. Schuster; R. Scelle; A. Trautmann; S. Knoop; M. K. Oberthaler; M. M. Haverhals; M. R. Goosen; S. J. J. M. F. Kokkelmans; E. Tiemann

doi:10.1103/PhysRevA.85.042721

Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures

T. Schuster, R. Scelle, A. Trautmann, S. Knoop, M. K. Oberthaler, M. M. Haverhals, M. R. Goosen, S. J. J. M. F. Kokkelmans, E. Tiemann

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Abstract

We have observed 26 interspecies Feshbach resonances at fields up to 2050 G in ultracold 6Li+23Na mixtures for different spin-state combinations. Applying the asymptotic bound-state model to assign the resonances, we found that most resonances have d-wave character. This analysis serves as guidance for a coupled-channel calculation, which uses modified interaction potentials to describe the positions of the Feshbach resonances well within the experimental uncertainty and to calculate their widths. The scattering length derived from the improved interaction potentials is experimentally confirmed and deviates from previously reported values in sign and magnitude. We give prospects for 7Li+23Na and predict broad Feshbach resonances suitable for tuning. © 2012 American Physical Society.

Original language	English
Article number	042721
Number of pages	8
Journal	Physical Review A. Atomic, Molecular and Optical Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.85.042721
Publication status	Published - 2012

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@article{9948420be87847bb9f083d47ec9ab2de,

title = "Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures",

abstract = "We have observed 26 interspecies Feshbach resonances at fields up to 2050 G in ultracold 6Li+23Na mixtures for different spin-state combinations. Applying the asymptotic bound-state model to assign the resonances, we found that most resonances have d-wave character. This analysis serves as guidance for a coupled-channel calculation, which uses modified interaction potentials to describe the positions of the Feshbach resonances well within the experimental uncertainty and to calculate their widths. The scattering length derived from the improved interaction potentials is experimentally confirmed and deviates from previously reported values in sign and magnitude. We give prospects for 7Li+23Na and predict broad Feshbach resonances suitable for tuning. {\textcopyright} 2012 American Physical Society.",

author = "T. Schuster and R. Scelle and A. Trautmann and S. Knoop and Oberthaler, {M. K.} and Haverhals, {M. M.} and Goosen, {M. R.} and Kokkelmans, {S. J. J. M. F.} and E. Tiemann",

year = "2012",

doi = "10.1103/PhysRevA.85.042721",

language = "English",

volume = "85",

journal = "Physical Review A. Atomic, Molecular and Optical Physics",

issn = "1050-2947",

publisher = "American Physical Society",

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TY - JOUR

T1 - Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures

AU - Schuster, T.

AU - Scelle, R.

AU - Trautmann, A.

AU - Knoop, S.

AU - Oberthaler, M. K.

AU - Haverhals, M. M.

AU - Goosen, M. R.

AU - Kokkelmans, S. J. J. M. F.

AU - Tiemann, E.

PY - 2012

Y1 - 2012

N2 - We have observed 26 interspecies Feshbach resonances at fields up to 2050 G in ultracold 6Li+23Na mixtures for different spin-state combinations. Applying the asymptotic bound-state model to assign the resonances, we found that most resonances have d-wave character. This analysis serves as guidance for a coupled-channel calculation, which uses modified interaction potentials to describe the positions of the Feshbach resonances well within the experimental uncertainty and to calculate their widths. The scattering length derived from the improved interaction potentials is experimentally confirmed and deviates from previously reported values in sign and magnitude. We give prospects for 7Li+23Na and predict broad Feshbach resonances suitable for tuning. © 2012 American Physical Society.

AB - We have observed 26 interspecies Feshbach resonances at fields up to 2050 G in ultracold 6Li+23Na mixtures for different spin-state combinations. Applying the asymptotic bound-state model to assign the resonances, we found that most resonances have d-wave character. This analysis serves as guidance for a coupled-channel calculation, which uses modified interaction potentials to describe the positions of the Feshbach resonances well within the experimental uncertainty and to calculate their widths. The scattering length derived from the improved interaction potentials is experimentally confirmed and deviates from previously reported values in sign and magnitude. We give prospects for 7Li+23Na and predict broad Feshbach resonances suitable for tuning. © 2012 American Physical Society.

U2 - 10.1103/PhysRevA.85.042721

DO - 10.1103/PhysRevA.85.042721

M3 - Article

SN - 1050-2947

VL - 85

JO - Physical Review A. Atomic, Molecular and Optical Physics

JF - Physical Review A. Atomic, Molecular and Optical Physics

IS - 4

M1 - 042721

ER -

Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures

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