Towards photostatistics from photon-number discriminating detectors |
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| Authors: | Hwang Lee Ulvi Yurtsever Pieter Kok George M. Hockney Christoph Adami Samuel L. Braunstein |
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| Affiliation: | 1. Quantum Computing Technologies Group, Section 367, Jet Propulsion Laboratory , California Institute of Technology , MS 126-347, 4800 Oak Grove Drive, CA , 91109-8099 , USA;2. Quantum Computing Technologies Group, Section 367, Jet Propulsion Laboratory , California Institute of Technology , MS 126-347, 4800 Oak Grove Drive, CA , 91109-8099 , USA;3. Hewlett Packard Laboratories , Bristol , BS34 8QZ , UK;4. Computer Science , University of York , York , YO10 5DD , UK |
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| Abstract: | Abstract We study the properties of a photodetector that has a numberresolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a detector can only eliminate the possibility that the incident field corresponds to a number of photons less than the detected photon number. We show that such a non-photon number-discriminating detector, however, provides a useful tool in the reconstruction of the photon number distribution of the incident field even in the presence of dark counts. |
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