TY - JOUR
AU - Robert Lewis-Swan
AU - Matthew Norcia
AU - K. Cline
AU - James Thompson
AU - Ana Maria Rey
AB - Cavity QED is a promising avenue for the deterministic generation of entangled and spin-squeezed states for quantum metrology. One archetypal scheme generates squeezing via collective one-axis twisting interactions. However, we show that in implementations using optical transitions in long-lived atoms the achievable squeezing is fundamentally limited by collectively enhanced emission into the cavity mode which is generated in parallel with the cavity-mediated spin-spin interactions. We propose an alternative scheme which generates a squeezed state that is protected from collective emission, and investigate its sensitivity to realistic sources of experimental noise and imperfections.
BT - Physical Review Letters
DA - 2018-08
DO - 10.1103/PhysRevLett.121.070403
N2 - Cavity QED is a promising avenue for the deterministic generation of entangled and spin-squeezed states for quantum metrology. One archetypal scheme generates squeezing via collective one-axis twisting interactions. However, we show that in implementations using optical transitions in long-lived atoms the achievable squeezing is fundamentally limited by collectively enhanced emission into the cavity mode which is generated in parallel with the cavity-mediated spin-spin interactions. We propose an alternative scheme which generates a squeezed state that is protected from collective emission, and investigate its sensitivity to realistic sources of experimental noise and imperfections.
PY - 2018
T2 - Physical Review Letters
TI - Robust Spin Squeezing via Photon-Mediated Interactions on an Optical Clock Transition
VL - 121
SN - 0031-9007
ER -