Suitability versus fidelity for rating single-photon guns

Hockney, G. M.; Kok, P.; Dowling, J. P.

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Suitability versus fidelity for rating single-photon guns

Hockney, G. M.; Kok, P.; Dowling, J. P.

URI: http://hdl.handle.net/2014/9376

Date: 2002

Citation: Physical Review Letters

Abstract:

We show that fidelity, under the standard definitions is not sufficient to assess quantum sources, and we propose a new sufficient to assess quantum sources, and we propose a new measure of suitability that necessarily depends on the application for the source. We consider the performance of single-photon guns in the context of quantum key distribution (QKD) and interferometric quantum computation.

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