Toward the Realization of Stored Rydberg Polaritons in a Cold Atomic Cloud
Bongjune Kim1*, Ko-Tang Chen1, Yi-Hsin Chen1, Chin-Yuan Lee1, Shih-Lun Liang1, Yi-Hua Lai1, Weilun Hong1, Ying-Cheng Chen2, Yong-Fan Chen3, Ite A. Yu1
1Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
2Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan
3Department of Physics, National Cheng Kung University, Tainan, Taiwan
* Presenter:Bongjune Kim,
The photon-photon interaction strength via the effect of electromagnetically induced transparency (EIT) can be greatly amplified by an atomic Rydberg ensemble due to the strong electric dipole-dipole interaction among the atoms. Also, Rydberg polaritons generated during the EIT light storage can be used to further increase the interaction time. High interaction strength plus long interaction time of the stored Rydberg polaritons can make optical quantum phase gates feasible. Here we will introduce our on-going work toward the realization of stored Rydberg polaritons in a cold rubidium atomic cloud.

Keywords: Rydberg state, Coherent effect