Entangling different degrees of freedom by quadrature squeezing cylindrically polarized modes

Gabriel C, Aiello A, Zhong W, Euser TG, Joly NY, Banzer P, Foertsch M, Elser D, Andersen UL, Marquardt C, Russell PSJ, Leuchs G (2011)

Publication Type: Journal article

Publication year: 2011

Journal

Physical Review Letters American Physical Society

Book Volume: 106

Article Number: 060502

Journal Issue: 6

DOI: 10.1103/PhysRevLett.106.060502

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.© 2011 American Physical Society.

Authors with CRIS profile

Andrea Aiello
Christoph Marquardt Lehrstuhl für Experimentalphysik (Optik) Gerhard Leuchs

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Gabriel, C., Aiello, A., Zhong, W., Euser, T.G., Joly, N.Y., Banzer, P.,... Leuchs, G. (2011). Entangling different degrees of freedom by quadrature squeezing cylindrically polarized modes. Physical Review Letters, 106(6). https://doi.org/10.1103/PhysRevLett.106.060502

MLA:

Gabriel, C., et al. "Entangling different degrees of freedom by quadrature squeezing cylindrically polarized modes." Physical Review Letters 106.6 (2011).

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