Dataset for "Experimental demonstration of kilometer­ range quantum digital signatures"



This dataset contains the data required to reproduce figures 2 and 3 in the paper "Experimental demonstration of kilometer ­range quantum digital signatures" by Ross J. Donaldson, Robert J. Collins, Klaudia Kleczkowska, Ryan Amiri, Petros
Wallden, Vedran Dunjko, John Jeffers, Erika Andersson, and Gerald S. Buller which was published in Physical Review A in 2016.

The figure captions are as follows:

FIG. 2. Experimental results and calculated parameters. In our experiment, measurement statistics for Bob and Charlie were similar. (a) Conditional probabilities for unambiguous state elimination by Bob, with |\alpha|^2 = 0.5. These probabilities are used to calculate the gap g and the required signature length per half-bit. (b) Time required for Alice to send a half-bit to Bob. (c) The gap achieved in the experiments is a calculated from both receivers’ cost matrices. (d) The length L required to prevent forging and repudiation, per half-bit of message, for a security level of 0.01%. For all subfigures at 500 m, mean
photon number points of 0.1, 0.9, and 1 have been removed. Here, the combination of count rate and the dead time of the detector led to nonlinearity in the detection.

FIG. 3. Unambiguous state elimination (USE) success rate at different transmission distances for Bob. Results for Bob and Charlie are again very similar so only results for Bob are shown. The failure rate of USE is on average only 1.7% of the pulse-repetition frequency and is not plotted. For transmission distance 500 m, points for mean photon number 0.1, 0.9, and 1 have been removed, since here the combination of count rate and the dead time of the detector led to
nonlinearity in the detection of events.

The datasets are comma separated value (CSV) files created on a computer running Microsoft Windows 7.
Date made available8 Jan 2016
PublisherHeriot-Watt University

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