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26 September 2013 Non-deterministic quantum CNOT gate with double encoding
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Abstract
We define an Asymmetric Partially Polarizing Beam Splitter (APPBS) to be a linear optical component having different reflectivity (transmittance) coefficients, on the upper and the lower arms, for horizontally and vertically Polarized incident photons. Our CNOT model is composed by two APPBSs, one Half Wave Plate (HWP), two Polarizing Beam Splitters (PBSs), a Beam Splitter (BS) and a -phase rotator for specific wavelength. Control qubit operates with dual rail encoding while target qubit is based on polarization encoding. To perform CNOT operation in 4/27 of the cases, input and target incoming photons are injected with different wavelengths.
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Amor Gueddana, Moez Attia, and Rihab Chatta "Non-deterministic quantum CNOT gate with double encoding", Proc. SPIE 8875, Quantum Communications and Quantum Imaging XI, 88750V (26 September 2013); https://doi.org/10.1117/12.2023041
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