@article{11919,
  author = {Robert Lewis-Swan and Diego Barberena and Juan Muniz and Julia Cline and Dylan Young and James Thompson and Ana Maria Rey},
  title = {Protocol for Precise Field Sensing in the Optical Domain with Cold Atoms in a Cavity},
  abstract = {In the context of quantum metrology, optical cavity-QED platforms have primarily been focused on the generation of entangled atomic spin states useful for next-generation frequency and time standards. Here, we report a complementary application: The use of optical cavities to generate non-classical states of light for electric field sensing below the standard quantum limit. We show that cooperative atom-light interactions in the strong collective coupling regime can be used to engineer generalized atom-light cat states which enable quantum enhanced sensing of small displacements of the cavity field even in the presence of photon loss. We demonstrate that metrological gains of 10-20 dB below the standard quantum limit are within reach for current cavity-QED systems operating with long-lived alkaline-earth atoms.},
  year = {2020},
  journal = {Physical Review Letters},
  volume = {124},
  pages = {193602},
  month = {2020-05},
  url = {https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.193602},
  doi = {10.1103/PhysRevLett.124.193602},
}