2008/02/12 by Eugeniy E. Mikhailov, Irina Novikova · 1 citation
Computer Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Electromagnetically induced transparency #Laser linewidth #Polarization (electrochemistry) #Quantum #Quantum Information and Cryptography #Quantum fluctuation #Quantum noise #Quantum optics #Quantum optics and atomic interactions #Squeezed coherent state #Wavelength #quant-ph
paper · pdf · doi:10.1364/ol.33.001213
published as Optics Letters, Issue 11, 33, 1213-1215, (2008) · 4 pages, 3 figures
arxiv created 2008/02/12 · openalex publication_date 2008/05/22 · arxiv updated 2010/09/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We observed squeezed vacuum light at 795 nm in (87)Rb vapor via resonant polarization self-rotation and report noise sidebands suppression of approximately 1 dB below shot-noise level spanning from 30 kHz to 1.2 MHz frequencies. To our knowledge, this is the first demonstration of submegahertz quadrature vacuum squeezing in atomic systems. The spectral range of observed squeezing matches well typical bandwidths of electromagnetically induced transparency (EIT) resonances, making this simple technique for generation of optical fields with nonclassical statistics at atomic transitions wavelengths attractive for EIT-based quantum information protocols applications.