Robust and Efficient Sifting-Less Quantum Key Distribution ProtocolsReportar como inadecuado

Robust and Efficient Sifting-Less Quantum Key Distribution Protocols - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 LPQM - Laboratoire de Photonique Quantique et Moléculaire

Abstract : We show that replacing the usual sifting step of the standard quantum-key-distribution protocol BB84 by a one-way reverse reconciliation procedure increases its robustness against photon-number-splitting PNS attacks to the level of the SARG04 protocol while keeping the raw key-rate of BB84. This protocol, which uses the same state and detection than BB84, is the m=4 member of a protocol-family using m polarization states which we introduce here. We show that the robustness of these protocols against PNS attacks increases exponentially with m, and that the effective keyrate of optimized weak coherent pulses decreases with the transmission T like T^{1+1-m-2}.

Autor: Frédéric Grosshans -



Documentos relacionados