Strong low-frequency quantum correlations from a four-wave mixing amplifier

We show that a simple scheme based on nondegenerate four-wave mixing in a hot atomic vapor behaves like a near-perfect phase-insensitive optical amplifier, which can generate bright twin beams with a measured quantum noise reduction in the intensity difference of more than 8 dB, close to the best op...

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Bibliographic Details
Published inarXiv.org
Main Authors McCormick, C F, Marino, A M, Boyer, V, Lett, P D
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 26.03.2008
Subjects
Beams (radiation)
Four-wave mixing
Frequency ranges
Noise intensity
Noise levels
Noise reduction
Oscillators
Parametric amplifiers
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Summary:We show that a simple scheme based on nondegenerate four-wave mixing in a hot atomic vapor behaves like a near-perfect phase-insensitive optical amplifier, which can generate bright twin beams with a measured quantum noise reduction in the intensity difference of more than 8 dB, close to the best optical parametric amplifiers and oscillators. The absence of a cavity makes the system immune to external perturbations, and the strong quantum noise reduction is observed over a large frequency range.
ISSN:2331-8422
DOI:10.48550/arxiv.0703111