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Spectroscopic determination of the s-wave scattering lengths of 86Sr and 88Sr

P. G. Mickelson·Y. N. Martinez·A. D. Saenz·S. B. Nagel·Y. C. Chen·T. C. Killian·P. Pellegrini·R. Cote
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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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P. G. Mickelson, Y. N. Martinez, A. D. Saenz, S. B. Nagel, Y. C. Chen, T. C. Killian, P. Pellegrini, R. Cote. 2005-07-14. Spectroscopic determination of the s-wave scattering lengths of 86Sr and 88Sr. https://doi.org/10.1103/physrevlett.95.223002

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