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arXiv · 2301.00871

Measuring nonlocal three-body spatial correlations with Rydberg trimers in ultracold quantum gases

S. K. Kanungo·Y. Lu·F. B. Dunning·S. Yoshida·J. Burgdörfer·T. C. Killian
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Abstract

We measure nonlocal third-order spatial correlations in non-degenerate ultracold gases of bosonic ($^{84}$Sr) and spin-polarized fermionic ($^{87}$Sr) strontium through studies of the formation rates for ultralong-range trimer Rydberg molecules. The trimer production rate is observed to be very sensitive to the effects of quantum statistics with a strong enhancement of up to a factor of six (3!) in the case of bosonic $^{84}$Sr due to bunching, and a marked reduction for spin-polarized fermionic $^{87}$Sr due to anti-bunching. The experimental results are compared to theoretical predictions and good agreement is observed. The present approach opens the way to {\it{in situ}} studies of higher-order nonlocal spatial correlations in a wide array of ultracold atomic-gas systems.

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S. K. Kanungo, Y. Lu, F. B. Dunning, S. Yoshida, J. Burgdörfer, T. C. Killian. 2023-01-02. Measuring nonlocal three-body spatial correlations with Rydberg trimers in ultracold quantum gases. https://doi.org/10.1103/physreva.107.033322

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