Parametric Amplification and Noise Squeezing in Room Temperature Atomic Vapors

We report on the use of parametric excitation to coherently manipulate the collective spin state of an atomic vapor at room temperature. Signatures of the parametric excitation are detected in the ground-state spin evolution. These include the excitation spectrum of the atomic coherences, which cont...

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Veröffentlicht in:	Physical review letters 2019-07, Vol.123 (3), p.033601-033601, Article 033601
Hauptverfasser:	Guarrera, V, Gartman, R, Bevilacqua, G, Barontini, G, Chalupczak, W
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Attenuation Compressing Excitation spectra Magnetic measurement Mechanical oscillators Noise Performance enhancement Quadratures Room temperature Signal processing Signal to noise ratio
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