Frequency Stability of Atomic Frequency Standards beyond Quantum Projection Noise

Details Frequency Stability of Atomic Frequency Standards beyond Quantum Projection Noise Frequency Stability of Atomic Frequency Standards beyond Quantum Projection Noise

2011-04-07

arxiv.org/abs/1104.1301v1

Physics

Quantum Physics

Scientific paper

In this paper we describe that the optically pumped frequency standards can have frequency stability beyond the quantum noise limit by detecting the Ramsey resonance through the squeezed light. In this paper we report that instead of considering the interaction of entangled atoms in the microwave region, it will be more practical to create the entanglement of the atoms in the detection region using the squeezed light, which is also used for the detection of the Ramsey resonance. The advantage of squeezing can be derived when the technical noises have been removed.

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