Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 53, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6455/ab53b5
Keywords
Rydberg molecules; ultracold atoms; spectroscopy
Categories
Funding
- AFOSR [FA9550-17-1-0366]
- NSF [1600059]
- Robert A Welch Foundation [C-0734, C-1844]
- FWF (Austria) [FWF-SFB041 ViCom, FWF-DK-W1243]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1600059] Funding Source: National Science Foundation
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Photoexcitation rates for creation of ultralong-range Rydberg molecules with 31 less than or similar to n less than or similar to 41 in both ground and excited vibrational levels in cold (T 900 nK) gases of polarized and unpolarized Sr-87 are presented. The measured production rates of the nu = 0, 1 and 2 vibrational levels reveal similar to rather different n dependences which are analyzed by evaluating the Franck-Condon factors associated with excitation of the different vibrational levels and molecular rotational states. In particular, for gases of spin-polarized fermions, only Rydberg dimers with odd rotational quantum numbers are excited due to the requirement that their wave functions be anti-symmetric with respect to exchange. The data also demonstrate that measurements of the formation of vibrationally-excited nu = 1 molecules can furnish a probe of pair correlations over intermediate length scales.
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