TY - JOUR
AU - Robert Lewis-Swan
AU - Diego Barberena
AU - Juan Muniz
AU - Julia Cline
AU - Dylan Young
AU - James Thompson
AU - Ana Maria Rey
AB - 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.
BT - Physical Review Letters
DA - 2020-05
DO - 10.1103/PhysRevLett.124.193602
N2 - 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.
PY - 2020
EP - 193602
T2 - Physical Review Letters
TI - Protocol for Precise Field Sensing in the Optical Domain with Cold Atoms in a Cavity
UR - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.193602
VL - 124
ER -