Title :
Continuous-variables two-mode entanglement: experimental generation and characterization by measurements of symplectic invariants
Author :
Laurat, J. ; Coudreau, T. ; Keller, G. ; Huguenin, J.A.O. ; Treps, N. ; Fabre, C. ; Adesso, G. ; Serafini, A. ; Illuminati, F.
Author_Institution :
Laboratoire Kastler Brossel, Univ. Pierre et Marie Curie, Paris, France
Abstract :
We report on the experimental demonstration of strong quadrature EPR entanglement with a single type-II phase-matched self-phase-locked optical parametric oscillator below threshold and characterize this entanglement using the covariance matrix formalism.
Keywords :
EPR paradox; covariance matrices; optical parametric oscillators; optical phase matching; quantum entanglement; quantum optics; covariance matrix; optical parametric oscillator; quadrature EPR entanglement; self-phase-locking; symplectic invariants; two-mode entanglement; type-II phase-matching; Character generation; Covariance matrix; Extraterrestrial measurements; Frequency; Nonlinear optics; Optical retarders; Oscillators; Paramagnetic resonance; Phase measurement; Rotation measurement;
Conference_Titel :
Quantum Electronics Conference, 2005. EQEC '05. European
Print_ISBN :
0-7803-8973-5
DOI :
10.1109/EQEC.2005.1567493
