Physics – Quantum Physics
Scientific paper
2012-01-15
Physics
Quantum Physics
14 pages, 5 figures
Scientific paper
The generation of continuous-variable multipartite entangled states is important for several protocols of quantum information processing and communication, such as one-way quantum computation or controlled dense coding. In this article we theoretically show that multimode optical parametric oscillators can produce a great variety of such states by an appropriate control of the parametric interaction, what we accomplish by tailoring either the spatio-temporal shape of the pump, or the geometry of the nonlinear medium. Specific examples involving currently available optical parametric oscillators are given, hence showing that our ideas are within reach of present technology.
de Valcarcel German J.
Fabre Claude
Navarrete-Benlloch Carlos
Patera Giuseppe
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