Polarization-entangled light for quantum key distribution: how frequency spectrum and energy affect detection statistics

John M. Myers

doi:10.1117/12.603473

25 May 2005 Polarization-entangled light for quantum key distribution: how frequency spectrum and energy affect detection statistics

John M. Myers

Author Affiliations +

Proceedings Volume 5815, Quantum Information and Computation III; (2005) https://doi.org/10.1117/12.603473
Event: Defense and Security, 2005, Orlando, Florida, United States

Abstract

Light pulses used in quantum key distribution (QKD) designed for polarization entanglement also exhibit frequency entanglement. Although absent from the simplified models that initiated QKD, the degree of frequency entanglement of polarization-entangled light pulses is shown to affect the amount of key that can be distilled from raw light signals. In one example, extreme frequency entanglement generates 4/3 of the amount of distilled key as does no frequency entanglement.

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John M. Myers "Polarization-entangled light for quantum key distribution: how frequency spectrum and energy affect detection statistics", Proc. SPIE 5815, Quantum Information and Computation III, (25 May 2005); https://doi.org/10.1117/12.603473

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