Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 69: Quantum Information: Quantum Computing and Communication IV
Q 69.6: Vortrag
Freitag, 4. März 2016, 15:45–16:00, e214
Parsing Squeezed Light into Polarization Manifolds — •Christian R. Müller1,2,3, Lars S. Madsen3, Andrei Klimov4, Luis L. Sánchez-Soto5,1,2, Gerd Leuchs1,2, Christoph Marquardt1,2,3, and Ulrik L. Andersen3,1 — 1Max Planck Institute for the Science of Light, Erlangen, Germany. — 2Department of Physics, University of Erlangen-Nuremberg (FAU), Germany. — 3Department of Physics, Technical University of Denmark, Lyngby, Denmark. — 4Departamento de Física, Universidad de Guadalajara, Mexico. — 5Departamento de Óptica, Facultad de Física, Universidad Complutense, Madrid, Spain.
We investigate polarization squeezing in squeezed coherent states with different amplitudes [1]. In contrast to the traditional characterization based on the full Stokes parameters [2,3], we experimentally characterize the polarization properties of each photon number manifold individually. This method provides a substantially richer description and allows to investigate the otherwise separate regimes of spin squeezing, of quadrature squeezing as well as of the intermediate regime in a single experiment. Intuitive insight into the nature of the different regimes is given via the Husimi Q function [4,5] of the polarization states with different coherent amplitudes.
[1] C. R. Müller et al., arXiv:1511.03553 [quant-ph] (2015)
[2] Ch. Marquardt et al., Phys. Rev. Lett. 99, 220401 (2007)
[3] C. R. Müller et al., New J. Phys. 14, 085002 (2012)
[4] L. L. Sánchez-Soto et al., J. Phys. B 46, 104011 (2013)
[5] P. de la Hoz et al., Phys. Rev. A 88, 063803 (2013).