Media type: E-Article Title: Homodyne Estimation of Gaussian Quantum Discord Contributor: Blandino, Rémi; Genoni, Marco G.; Etesse, Jean; Barbieri, Marco; Paris, Matteo G. A.; Grangier, Philippe; Tualle-Brouri, Rosa imprint: American Physical Society (APS), 2012 Published in: Physical Review Letters Language: English DOI: 10.1103/physrevlett.109.180402 ISSN: 0031-9007; 1079-7114 Keywords: General Physics and Astronomy Origination: Footnote: