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Dephasing effect of Rydberg states on trap loss spectroscopy of cold atoms

Yifei Cao, Wenguang Yang, Hao Zhang, Mingyong Jing, Weibin Li, Linjie Zhang, Liantuan Xiao, and Suotang Jia

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Abstract

In this paper, we investigate the asymmetry of trap loss spectra of ultracold atoms during the excitation of Rydberg states. It is shown that the profile of a trap loss spectrum is affected by the density of Rydberg atoms as well as the dephasing rate of Rydberg states. The splitting of a trap loss spectrum is shown at the higher dephasing rates of Rydberg states. A three-level model, where the dephasing rates can be ascribed mainly to a random collision of Rydberg atoms, reasonably explains the experimental results.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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