Generation of a highly-phase-sensitive polarization-squeezed N-photon state by collinear parametric down-conversion and coherent photon subtraction
PhysRevA_74_013808.pdf 98.2 KB
It is shown that a highly-phase-sensitive polarization-squeezed (2n-1)-photon state can be generated by subtracting a diagonally polarized photon from the 2n photon component generated in collinear type II downconversion. This polarization wedge state has the interesting property that its photon number distribution in the horizontal and vertical polarizations remains sharply defined for phase shifts of up to 1/n between the circularly polarized components. Phase shifts at the Heisenberg limit are therefore observed as nearly deterministic transfers of a single photon between the horizontal and vertical polarization components.
Physical Review A. Atomic, Molecular, and Optical Physics
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Copyright (c) 2006 American Physical Society.
Graduate School of Advanced Sciences of Matter