Rydberg quantum antennas for chip-interfaced single-photon source array

@misc{zhang2026rydberg,
  title = {{Rydberg quantum antennas for chip-interfaced single-photon source array}},
  author = {Yan-Lei Zhang and Dong-Qi Ma and Guang-Jie Chen and Qing-Xuan Jie and Liang Chen and Ya-Dong Hu and Zhu-Bo Wang and Guang-Can Guo and Chang-Ling Zou},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.20172},
  eprint = {2609.20172},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.20172},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Rydberg quantum antennas for chip-interfaced single-photon source array
AU  - Yan-Lei Zhang
AU  - Dong-Qi Ma
AU  - Guang-Jie Chen
AU  - Qing-Xuan Jie
AU  - Liang Chen
AU  - Ya-Dong Hu
AU  - Zhu-Bo Wang
AU  - Guang-Can Guo
AU  - Chang-Ling Zou
PY  - 2026
DA  - 2026/09/01
PB  - arXiv
DO  - 10.48550/arxiv.2609.20172
UR  - https://arxiv.org/abs/2609.20172
AB  - We propose a Rydberg quantum antenna, consisting of a one-dimensional chain of neutral atoms trapped in a standing-wave optical tweezer, as a chip-interfaced single-photon source. Rydberg blockade induces a single collective excitation in the atomic chain, while its ordered geometry shapes the photon emission into a directional beam, thereby realizing a quantum antenna that emits strictly one photon at a time. Through numerical simulations, we demonstrate single-photon collection efficiencies into a waveguide exceeding 70\% through a high-NA lens with a negligible multiple excitation probability. These performance are robust against probabilistic atom loading in the standing-wave dipole traps, requiring only ten atoms, indicating experimental feasibility. The Rydberg quantum antenna thus offers a unique route toward scalable arrays of high-efficiency, high-purity, and identical single-photon sources interfaced with a photonic chip, addressing key challenges in photonic quantum information technology.
ER  -