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Controllable single-photon scattering in a Rydberg-atom-waveguide system via van der Waals interactions by Wang, Peng-Fei; Huang, Lei; Guo, Yi-Long-Yue; Wang, Jing; Zhang, Han-Xiao; Yang, Hong; Yan, Dong is a scholarly article available to read on EtoBox.

What is Controllable single-photon scattering in a Rydberg-atom-waveguide system via van der Waals interactions about?

We investigate single-photon scattering in a system comprising a waveguide coupled to a pair of Rydberg atoms, illuminated by a coherent field. By adjusting the interatomic distance, we can transition between the Rydberg blockade and Rydberg antiblockade regimes, as the van der Waals interaction strength varies with distance. These distinct regimes, manifesting themselves in single-photon scattering, allow flexible reflection control due to their analogy to those of a small- and giant-atom interactions with the waveguide. We also derive scattering criteria for Rydberg blockade and Rydberg antiblockade, corresponding to specific single-photon reflection spectrum. Based on these criteria, the blockade and antiblockade distances can be estimated.

Author

Wang, Peng-Fei; Huang, Lei; Guo, Yi-Long-Yue; Wang, Jing; Zhang, Han-Xiao; Yang, Hong; Yan, Dong

Published

2025

Language

EN