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Optimal Quantum States for Image Sensing in Loss

Author(s)
Nair, Ranjith; Yen, Brent J.
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Abstract
We consider a general image sensing framework that includes many quantum sensing problems by an appropriate choice of image set, prior probabilities, and cost function. For any such problem, in the presence of loss and a signal energy constraint, we show that a pure input state of light with the signal modes in a mixture of number states minimizes the cost among all ancilla-assisted parallel strategies. Lossy binary phase discrimination with a peak photon number constraint and general lossless image sensing are considered as examples.
Date issued
2011-10
URI
http://hdl.handle.net/1721.1/69059
Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Nair, Ranjith, and Brent Yen. “Optimal Quantum States for Image Sensing in Loss.” Physical Review Letters 107.19 (2011): n. pag. Web. 9 Feb. 2012. © 2011 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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