All-atomic generation and noise-quadrature filtering of squeezed vacuum in hot Rb vapor

With our all-atomic squeezing and filtering setup, we demonstrate control over the noise amplitudes and manipulation of the frequency-dependent squeezing angle of a squeezed vacuum quantum state by passing it through an atomic medium with electromagnetically induced transparency (EIT). We generate low sideband frequency squeezed vacuum using the polarization self-rotation effect in a hot Rb vapor cell, and direct it through a second atomic vapor subject to EIT conditions. We use the frequency-dependent absorption of the EIT window to demonstrate an example of squeeze amplitude attenuation and squeeze angle rotation of the quantum noise quadratures of the squeezed probe. These studies have implications for quantum memory and storage as well as gravitational wave interferometric detectors.

[1]  A. Sørensen,et al.  Quantum interface between light and atomic ensembles , 2008, 0807.3358.

[2]  Alessandro Cerè,et al.  Squeezed-light optical magnetometry. , 2010, Physical review letters.

[3]  Mertz,et al.  Observation of squeezed states generated by four-wave mixing in an optical cavity. , 1985, Physical review letters.

[4]  Polarization squeezing of light by single passage through an atomic vapor , 2011, 1107.3158.

[5]  C. Caves.  Quantum Mechanical Noise in an Interferometer , 1981 .

[6]  Mirko Lobino,et al.  Propagation of squeezed vacuum under electromagnetically induced transparency , 2008, 0804.2703.

[7]  S. Knappe,et al.  Simple parameterization of dark-resonance line shapes , 2003 .

[8]  P. Grangier,et al.  Generation of pulsed and continuous-wave squeezed light with 87Rb vapor. , 2009, Optics express.

[9]  E. Mikhailov,et al.  Polarization self-rotation in ultracold atomic {sup 87}Rb , 2011, 1102.4041.

[10]  J. H. Müller,et al.  Quantum memories , 2010, 1003.1107.

[11]  D. Korystov,et al.  Quantum memory for squeezed light. , 2007, Physical review letters.

[12]  Schumaker,et al.  New formalism for two-photon quantum optics. I. Quadrature phases and squeezed states. , 1985, Physical review. A, General physics.

[13]  Jonathan P. Dowling,et al.  Quantum-enhanced magnetometer with low-frequency squeezing , 2012, 1202.3831.

[14]  D. Akamatsu,et al.  Observation of electromagnetically induced transparency for a squeezed vacuum with the time domain method. , 2007, Optics express.

[15]  Andrey B. Matsko,et al.  Conversion of conventional gravitational-wave interferometers into quantum nondemolition interferometers by modifying their input and/or output optics , 2001 .

[16]  D. Akamatsu,et al.  Electromagnetically induced transparency with squeezed vacuum. , 2004, Physical review letters.

[17]  E. Mikhailov,et al.  Quadrature noise in light propagating through a cold 87Rb atomic gas , 2011, 1103.1546.

[18]  Keisuke Goda,et al.  Frequency-dependent squeeze-amplitude attenuation and squeeze-angle rotation by electromagnetically induced transparency for gravitational-wave interferometers , 2005, gr-qc/0508102.

[19]  D. Akamatsu,et al.  Ultraslow propagation of squeezed vacuum pulses with electromagnetically induced transparency. , 2006, Physical review letters.

[20]  D. Akamatsu,et al.  Storage and retrieval of a squeezed vacuum. , 2007, Physical review letters.

[21]  Dhurandhar,et al.  Performance of a dual recycled interferometer with squeezed light. , 1996, Physical review. A, Atomic, molecular, and optical physics.

[22]  D. Walls.  Squeezed states of light , 1983, Nature.

[23]  E. Mikhailov,et al.  All-atomic source of squeezed vacuum with full pulse-shape control , 2012, 1201.4372.

[24]  Karsten Danzmann,et al.  Experimental characterization of frequency-dependent squeezed light , 2005, 0706.4479.

[25]  Experimental Vacuum Squeezing in Rubidium Vapor via Self-Rotation , 2003, quant-ph/0303109.

[26]  R. Rosenfeld.  Nature , 2009, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[27]  Keisuke Goda,et al.  A quantum-enhanced prototype gravitational-wave detector , 2008, 0802.4118.

[28]  Kimble,et al.  Spectroscopy with squeezed light. , 1992, Physical review letters.

[29]  D. Akamatsu,et al.  Quantum memory of a squeezed vacuum for arbitrary frequency sidebands , 2009, 0905.2816.

[30]  Vacuum squeezing in atomic media via self-rotation , 2001, quant-ph/0112072.

[31]  Karsten Danzmann,et al.  Observation of squeezed states with strong photon-number oscillations , 2009, 0909.5386.

[32]  E. Mikhailov,et al.  Low-frequency vacuum squeezing via polarization self-rotation in Rb vapor. , 2008, Optics letters.

[33]  E. Mikhailov,et al.  Vacuum squeezing via polarization self-rotation and excess noise in hot Rb vapors , 2009, 0903.3156.

[34]  S. Harris,et al.  Electromagnetically Induced Transparency , 1991, QELS '97., Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference.

[35]  Schumaker,et al.  New formalism for two-photon quantum optics. II. Mathematical foundation and compact notation. , 1985, Physical review. A, General physics.

[36]  Irina Novikova,et al.  Electromagnetically induced transparency‐based slow and stored light in warm atoms , 2012 .