Eavesdropping on the BB84 Protocol using Phase-Covariant Cloning: Experimental Results

• URL: http://arxiv.org/abs/2409.16284v1
• Date: Tue, 24 Sep 2024 17:57:40 GMT
• Title: Eavesdropping on the BB84 Protocol using Phase-Covariant Cloning: Experimental Results
• Authors: Brian Pigott, Elizabeth Campolongo, Hardik Routray, Alex Khan,
• Abstract summary: BB84 protocol has provable security over a noiseless quantum channel. The level of tolerable error on such systems is still unclear, as is how much information about a raw key may be obtained by an eavesdropper.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Though the BB84 protocol has provable security over a noiseless quantum channel, the security is not proven over current noisy technology. The level of tolerable error on such systems is still unclear, as is how much information about a raw key may be obtained by an eavesdropper. We develop a reproducible test to determine the security--or lack thereof--of the protocol in practice. This enables us to obtain an experimental estimate of the information that can be obtained using asymmetric phase-covariant cloning to eavesdrop on the BB84 protocol.

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