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  Observation of squeezed states with strong photon-number oscillations

Mehmet, M., Vahlbruch, H., Lastzka, N., Danzmann, K., & Schnabel, R. (2010). Observation of squeezed states with strong photon-number oscillations. Physical Review. A, 81(1): 013814. doi:10.1103/PhysRevA.81.013814.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-B914-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-B916-0
Genre: Journal Article

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0909.5386 (Preprint), 3MB
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 Creators:
Mehmet, Moritz1, Author              
Vahlbruch, Henning1, Author              
Lastzka, Nico1, Author              
Danzmann, Karsten1, Author              
Schnabel, Roman1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Quantum Physics, quant-ph
 Abstract: Squeezed states of light constitute an important nonclassical resource in the field of high-precision measurements, e.g. gravitational wave detection, as well as in the field of quantum information, e.g. for teleportation, quantum cryptography, and distribution of entanglement in quantum computation networks. Strong squeezing in combination with high purity, high bandwidth and high spatial mode quality is desirable in order to achieve significantly improved performances contrasting any classical protocols. Here we report on the observation of the strongest squeezing to date of 11.5 dB, together with unprecedented high state purity corresponding to a vacuum contribution of less than 5%, and a squeezing bandwidth of about 170 MHz. The analysis of our squeezed states reveals a significant production of higher-order pairs of quantum-correlated photons, and the existence of strong photon number oscillations.

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 Dates: 2009-09-292010
 Publication Status: Published in print
 Pages: 7 pages, 6 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 0909.5386
DOI: 10.1103/PhysRevA.81.013814
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Title: Physical Review. A
  Alternative Title : Phys. Rev. A
Source Genre: Journal
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Publ. Info: New York, NY : Published by the American Physical Society through the American Institute of Physics
Pages: - Volume / Issue: 81 (1) Sequence Number: 013814 Start / End Page: - Identifier: Other: 954925225012
Other: 1050-2947