Comparison of architectures for approximating number-resolving photo-detection using non-number-resolving detectors

Details Comparison of architectures for approximating number-resolving photo-detection using non-number-resolving detectors Comparison of architectures for approximating number-resolving photo-detection using non-number-resolving detectors

2007-05-28

arxiv.org/abs/0705.4003v1

New J. Phys. 9, 233 (2007)

Physics

Quantum Physics

9 pages, 10 figures

Scientific paper

Number-resolving photo-detection is necessary for many quantum optics experiments, especially in the application of entangled state preparation. Several schemes have been proposed for approximating number-resolving photo-detection using non-number-resolving detectors. Such techniques include multi-port detection and time-division multiplexing. We provide a detailed analysis and comparison of different number-resolving detection schemes, with a view to creating a useful reference for experimentalists. We show that the ideal architecture for projective measurements is a function of the detector's dark count and efficiency parameters. We also describe a process for selecting an appropriate topology given actual experimental component parameters.

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