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arXiv · 1303.6701

Quantum-Secured Surveillance Based on Mach-Zehnder Interferometry

C. Allen Bishop·Travis S. Humble·Ryan S. Bennink·Brian P. Williams
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Abstract

We present a method for intrusion detection which is based on the Mach-Zehnder interference effect. This device provides monitored surveillance by continuously measuring the intensity of light collected by a pair of photodetectors. We find that our protocol allows for the detection of intrusion attempts which employ path- redirection and/or intercept-resend techniques. Expectation values for the registered output flux are provided for normal and interrupted operation.

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C. Allen Bishop, Travis S. Humble, Ryan S. Bennink, Brian P. Williams. 2013-03-26. Quantum-Secured Surveillance Based on Mach-Zehnder Interferometry. https://arxiv.org/abs/1303.6701

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