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  Entangling Different Degrees of Freedom by Quadrature Squeezing Cylindrically Polarized Modes

Gabriel, C., Aiello, A., Zhong, W., Euser, T. G., Joly, N. Y., Banzer, P., et al. (2011). Entangling Different Degrees of Freedom by Quadrature Squeezing Cylindrically Polarized Modes. PHYSICAL REVIEW LETTERS, 106(6): 060502. doi:10.1103/PhysRevLett.106.060502.

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 Creators:
Gabriel, C.1, Author           
Aiello, A.2, Author           
Zhong, W.1, Author           
Euser, T. G.3, Author           
Joly, N. Y.3, Author           
Banzer, P.4, 5, Author           
Foertsch, M.1, Author           
Elser, D.1, Author           
Andersen, U. L.1, Author           
Marquardt, Ch.1, Author           
Russell, P. St. J.3, Author           
Leuchs, G.6, Author           
Affiliations:
1Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364707              
2Optical Quantum Information Theory, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364705              
3Russell Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364721              
4International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364697              
5Interference Microscopy and Nanooptics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364700              
6Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364698              

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Free keywords: CONTINUOUS-VARIABLES; ENTANGLEMENT; REALIZATION; MOMENTUM; STATES; LIMITPhysics;
 Abstract: Quantum systems such as, for example, photons, atoms, or Bose-Einstein condensates, prepared in complex states where entanglement between distinct degrees of freedom is present, may display several intriguing features. In this Letter we introduce the concept of such complex quantum states for intense beams of light by exploiting the properties of cylindrically polarized modes. We show that already in a classical picture the spatial and polarization field variables of these modes cannot be factorized. Theoretically it is proven that by quadrature squeezing cylindrically polarized modes one generates entanglement between these two different degrees of freedom. Experimentally we demonstrate amplitude squeezing of an azimuthally polarized mode by exploiting the nonlinear Kerr effect in a specially tailored photonic crystal fiber. These results display that such novel continuous-variable entangled systems can, in principle, be realized.

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Language(s): eng - English
 Dates: 2011
 Publication Status: Published online
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Degree: -

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Title: PHYSICAL REVIEW LETTERS
Source Genre: Journal
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Publ. Info: ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA : AMER PHYSICAL SOC
Pages: - Volume / Issue: 106 (6) Sequence Number: 060502 Start / End Page: - Identifier: ISSN: 0031-9007