Quantum Resonance near Optimal Eavesdropping in Quantum Cryptography

Details Quantum Resonance near Optimal Eavesdropping in Quantum Cryptography Quantum Resonance near Optimal Eavesdropping in Quantum Cryptography

2009-01-02

arxiv.org/abs/0901.0237v1

Physics

Quantum Physics

9 pages, 3 figures

Scientific paper

We find a resonance behavior in the disturbance when an eavesdropper chooses a near-optimal strategy intentionally or unintentionally when the usual Bennett-Brassard cryptographic scheme is performed between two trusted parties. This phenomenon tends to disappear when eavesdropping strategy moves far from the optimal one. Therefore, we conjecture that this resonant effect is a characteristic for the eavesdropping strategy near to optimal one. We argue that this effect makes the quantum cryptography more secure against the eavesdropper's attack.

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