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Proceedings Paper

POVM and PV measurement in QKD
Author(s): Howard E. Brandt
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Paper Abstract

I first review positive-operator and projection valued measures in quantum mechanics, and then address a few applications in quantum key distribution (QKD). The positive operator valued measure (POVM) is useful in the design of a quantum key receiver. The projection valued (PV) measure is useful in the design of QKD eavesdropping devices. In this case the measurement determines correlations with the measurements made by the lefitimate receiver and therewith the maximum information gain by the probe. It is essential to know the latter for privacy amplification.

Paper Details

Date Published: 25 April 2007
PDF: 7 pages
Proc. SPIE 6573, Quantum Information and Computation V, 65730M (25 April 2007); doi: 10.1117/12.717073
Show Author Affiliations
Howard E. Brandt, U.S. Army Research Lab. (United States)

Published in SPIE Proceedings Vol. 6573:
Quantum Information and Computation V
Eric J. Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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