Ramsey spectroscopy with squeezed light

Abstract

Traditional Ramsey spectroscopy has the frequency resolution $2\pi /T$, where $T$ is the time separation between two light fields. Using squeezed states and two-atom excitation joint detection, we present a new scheme achieving a higher resolution $\pi /T$. We use two mode squeezed light which exhibits strong entanglement.

References in corpus (3)

• Quantum Optical Metrology -- The Lowdown on High-N00N States
• Experimental sub-Rayleigh resolution by an unseeded high-gain optical parametric amplifier for quantum lithography
• Intensity-intensity correlations as a probe of interferences - under conditions of none in the intensity

Cited by in corpus (1)

• Creation of a squeezed photon distribution using artificial atoms with broken inversion symmetry