Homodyne detection for atmosphere channels
arXiv:1111.0734 · doi:10.1103/PhysRevA.85.013826
Abstract
We give a systematic theoretical description of homodyne detection in the case where both the signal and the local oscillator pass through the turbulent atmosphere. Imperfect knowledge of the local-oscillator amplitude is effectively included in a noisy density operator, leading to postprocessing noise. Alternatively, we propose a technique with monitored transmission coefficient of the atmosphere, which is free of postprocessing noise.
9 pages, 5 figures
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