Spectroscopic determination of the s-wave scattering lengths of 86Sr and 88Sr |
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| Authors: | Mickelson P G Martinez Y N Saenz A D Nagel S B Chen Y C Killian T C Pellegrini P Côté R |
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| Affiliation: | Department of Physics and Astronomy, Rice University, Houston, Texas 77251, USA. |
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| Abstract: | We report the use of photoassociative spectroscopy to determine the ground-state s-wave scattering lengths for the main bosonic isotopes of strontium, 86Sr and 88Sr. Photoassociative transitions are driven with a laser red detuned by up to 1400 GHz from the 1S0-1P1 atomic resonance at 461 nm. A minimum in the transition amplitude for 86Sr at -494 +/- 5 GHz allows us to determine the scattering lengths 610a0 < a86 < 2300a0 for 86Sr and a much smaller value of -1a0 < a88 < 13a0 for 88Sr. |
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