Entanglement of two-mode Gaussian states: characterization and   experimental production and manipulation
  A powerful theoretical structure has emerged in recent years on the characterization and quantification of entanglement in continuous-variable systems. After reviewing this framework, we will illustrate it with an original set-up based on a type-II OPO with adjustable mode coupling. Experimental results allow a direct verification of many theoretical predictions and provide a sharp insight into the general properties of two-mode Gaussian states and entanglement resource manipulation. 
Julien Laurat (LKB - Jussieu), Ga\"elle Keller (LKB - Jussieu),   Jose-Augusto Oliveira-Huguenin (LKB - Jussieu), Claude Fab...