Ramsey spectroscopy with squeezed light.
Traditional Ramsey spectroscopy has the frequency resolution 2π/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, π/T. We use two-mode squeezed light, which exhibits strong entanglement.
Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA. k.qu@okstate.edu
Kenan
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Qu
G S
GS
Agarwal