Quantum Information Technology: Entanglement, Teleportation and Quantum Memory

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Generating quantum interference and polarization entanglement with optical parametric amplifiers
J.H. Shapiro
Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing, J.H. Shapiro and O. Hirota, eds. (Rinton Press, Princeton, 2003).



Abstract
A traveling-wave treatment of a type-II phase matched optical parametric ampli-fier (OPA) is reported. It connects the standard Gaussian-state analysis for such a system to the bi-photon wave packet characterization of a parametric downconverter.  This treatment reproduces the narrowband (near-resonance) predictions of the lumped-element OPA theory for doubly-resonant operation. Without the near-resonance restriction, a new quantum interference effect emerges: coincidencecounting dips and revivals in a Hong-Ou-Mandel interferometer.


















 
     
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