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Proceedings Paper

Sensing intruders using entanglement: a photonic quantum fence
Author(s): Travis S. Humble; Ryan S. Bennink; Warren P. Grice; Israel J. Owens
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Paper Abstract

We describe the use of quantum-mechanically entangled photons for sensing intrusions across a physical perimeter. Our approach to intrusion detection uses the no-cloning principle of quantum information science as protection against an intruder's ability to spoof a sensor receiver using a 'classical' intercept-resend attack. Moreover, we employ the correlated measurement outcomes from polarization-entangled photons to protect against 'quantum' intercept-resend attacks, i.e., attacks using quantum teleportation. We explore the bounds on detection using quantum detection and estimation theory, and we experimentally demonstrate the underlying principle of entanglement-based detection using the visibility derived from polarization-correlation measurements.

Paper Details

Date Published: 28 April 2009
PDF: 10 pages
Proc. SPIE 7342, Quantum Information and Computation VII, 73420H (28 April 2009); doi: 10.1117/12.820221
Show Author Affiliations
Travis S. Humble, Oak Ridge National Lab. (United States)
Ryan S. Bennink, Oak Ridge National Lab. (United States)
Warren P. Grice, Oak Ridge National Lab. (United States)
Israel J. Owens, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 7342:
Quantum Information and Computation VII
Eric J. Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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