A weakly-interacting many-body system of Rydberg polaritons based on electromagnetically induced transparency

Bongjune Kim, Ko Tang Chen, Shih Si Hsiao, Sheng Yang Wang, Kai Bo Li, Julius Ruseckas, Gediminas Juzeliūnas, Teodora Kirova, Marcis Auzinsh, Ying Cheng Chen, Yong Fan Chen, Ite A. Yu

研究成果: Article同行評審

摘要

The combination of Rydberg atoms and electromagnetically induced transparency (EIT) has been extensively studied in the strong-interaction regime. Here we proposed utilizing an EIT medium with a high optical depth (OD) and a Rydberg state of low principal quantum number to create a many-body system of Rydberg polaritons in the weak-interaction regime. The phase shift and attenuation induced by the dipole–dipole interaction (DDI) were still significant, and can be viewed as the consequences of elastic and inelastic collisions among Rydberg polaritons. We further observed that the width of the transverse momentum distribution of Rydberg polaritons at the exit of the system became notably smaller as compared with that at the entrance. The observation demonstrates the cooling effect in this system. The μs-long interaction time due to the high-OD EIT medium plus the μm2-size collision cross section due to the DDI suggests a feasible platform of polariton Bose–Einstein condensation.

原文English
文章編號101
期刊Communications Physics
4
發行號1
DOIs
出版狀態Published - 2021 十二月

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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