Suppression of Motional Dephasing Using State Mapping.

Jiao, Yuechun; Li, Changcheng; Shi, Xiao-Feng; Fan, Jiabei; Bai, Jingxu; Jia, Suotang; Zhao, Jianming; Adams, C Stuart

Abstract

Rydberg-mediated quantum optics is a useful route toward deterministic quantum information processing based on single photons and quantum networks but is bottlenecked by the fast motional dephasing of Rydberg atoms. Here, we propose and experimentally demonstrate suppressing the motional dephasing by creating an a priori unknown but correct phase to each Rydberg atom in an atomic ensemble. The phase created is exactly proportional to the unknown velocity of the thermal motion, resulting in a condition as if no thermal motion occurs to the Rydberg atom upon the retrieval of the signal photon. Our experiments, though hampered by the noise of lasers and the environment, demonstrate more than one order of magnitude enhancement of the coherence time. The feasibility of realizing long-lived storage of single photons in strongly interacting Rydberg media sheds new light on Rydberg-mediated quantum nonlinear optics.

Citation

Jiao, Y., Li, C., Shi, X.-F., Fan, J., Bai, J., Jia, S., Zhao, J., & Adams, C. S. (2025). Suppression of Motional Dephasing Using State Mapping. Physical Review Letters, 134(5), Article 053604. https://doi.org/10.1103/PhysRevLett.134.053604

• Journal Article Type: Article
• Acceptance Date: Jan 14, 2025
• Online Publication Date: Feb 6, 2025
• Publication Date: Feb 7, 2025
• Deposit Date: Mar 12, 2025
• Publicly Available Date: Mar 13, 2025
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 134
• Issue: 5
• Article Number: 053604
• DOI: https://doi.org/10.1103/PhysRevLett.134.053604
• Public URL: https://durham-repository.worktribe.com/output/3699891