Physics – Quantum Physics
Scientific paper
2009-12-08
Optics Express 18, 18254 - 18259 (2010)
Physics
Quantum Physics
Scientific paper
The two modes of the Einstein-Podolsky-Rosen quadrature entangled state generated by parametric down-conversion interfere on a beam splitter of variable splitting ratio. Detection of a photon in one of the beam splitter output channels heralds preparation of a signal state in the other, which is characterized using homodyne tomography. By controlling the beam splitting ratio, the signal state can be chosen anywhere between the single-photon and squeezed state.
Bimbard Erwan
Huisman Simon R.
Jain Nitin
Lvovsky Alexander I.
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