@article{13579,
  author = {Julia Cline and Vera Schäfer and Zhijing Niu and Dylan Young and Tai Yoon and James Thompson},
  title = {Continuous Collective Strong Coupling of Strontium Atoms to a High Finesse Ring Cavity},
  abstract = {We demonstrate continuous loading and strong collective coupling of atoms to a high finesse ring cavity. A series of spatially separated laser cooling stages delivers a continuous flux of 2.1‚� ¢(3)√ó107 88Sr atoms/s into an intracavity magic wavelength lattice where the atoms are deterministically transported inside the ring cavity. We observe a continuous atom-cavity vacuum Rabi splitting, demonstrating the first steady-state strong collective coupling on a narrow linewidth atomic transition. This Letter opens the path to future continuous cold atom devices, such as a continuous wave superradiant laser with millihertz linewidth and low vibration sensitivity, enabling searches for new physics and technologies.},
  year = {2025},
  journal = {Physical Review Letters},
  volume = {134},
  number = {1},
  pages = {013403},
  month = {2025-01},
  url = {https://link.aps.org/doi/10.1103/PhysRevLett.134.013403},
  doi = {10.1103/PhysRevLett.134.013403},
  note = {Publisher: American Physical Society},
}