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arXiv · 0710.4989

Exact minimum and maximum of yield with a finite number of decoy light intensities

Toyohiro Tsurumaru·Alexandre Soujaeff·Shigeki Takeuchi
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Abstract

In this paper, for the decoy state method using a finite number of decoy light intensities, we present an improved upper and lower bounds for the asymptotic yield y_n for n-photon states. In particular if all the light intensities are less than or equal to one, they are not only a lower or upper bound, but in fact are the exact minimum or maximum.

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Toyohiro Tsurumaru, Alexandre Soujaeff, Shigeki Takeuchi. 2007-10-28. Exact minimum and maximum of yield with a finite number of decoy light intensities. https://doi.org/10.1103/physreva.77.022319

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