Berlin 2014 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 71: Quantum information: Concepts and methods VI
Q 71.5: Talk
Friday, March 21, 2014, 17:30–17:45, Kinosaal
Hybrid entanglement in the continuous variables of cylindrical vector beams — •Stefan Berg-Johansen1,2, Christian Gabriel1,2, Ioannes Rigas1,2, Falk Töppel1,2, Birgit Stiller1,2, Tobias Röthlingshöfer1,2, Andrea Aiello1,2, Peter van Loock1,2,3, Ulrik Andersen1,2,4, Elisabeth Giacobino5, Christoph Marquardt1,2, and Gerd Leuchs1,2 — 1Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1/Bldg. 24, D-91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, Univ. of Erlangen-Nuremberg, Staudtstr. 7/B2, D-91058 Erlangen, Germany — 3Institute of Physics, Univ. of Mainz, Staudingerweg 7, 55128 Mainz, Germany — 4Department of Physics, Technical Univ. of Denmark, 2800 Kongens Lyngby, Denmark — 5Laboratoire Kastler Brossel, Univ. Pierre et Marie Curie, École Normale Supérieure, CNRS, 4 place Jussieu, 75252 Paris, France
Recently, it was shown that squeezed cylindrical vector beams exhibit hybrid entanglement between the polarization and transverse spatial degrees of freedom [1]. Here, hybrid entanglement arises naturally from an inseparability of the classical mode functions. We review the experimental techniques used to investigate this phenomenon [2], discuss an application to one-way quantum computing [3] and give an update on recent progress. A novel application of classical inseparability to optical measurements is presented.
[1] C. Gabriel et al., Phys. Rev. Lett. 106, 060502 (2011)
[2] C. Gabriel et al., Eur. Phys. J. D 66, 172 (2012)
[3] I. Rigas, C. Gabriel et al., arXiv:1210.5188 (2012)