Analysis of a High-Dimensional Extended B92 Protocol

• URL: http://arxiv.org/abs/2106.11460v1
• Date: Tue, 22 Jun 2021 00:40:48 GMT
• Title: Analysis of a High-Dimensional Extended B92 Protocol
• Authors: Hasan Iqbal, Walter O. Krawec
• Abstract summary: Quantum key distribution allows two parties to establish a shared secret key that is secure against all-powerful adversaries. One such protocol named B92 is quite appealing due to its simplicity but is highly sensitive to channel noise. We investigate a high-dimensional variant of an extended version of the B92 protocol and show that it can distill a key over high noise channels.
• Score: 2.335152769484957
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum key distribution (QKD) allows two parties to establish a shared secret key that is secure against all-powerful adversaries. One such protocol named B92 is quite appealing due to its simplicity but is highly sensitive to channel noise. In this work, we investigate a high-dimensional variant of an extended version of the B92 protocol and show that it can distill a key over high noise channels. The protocol we consider requires that Alice send only three high-dimensional states and Bob only perform partial measurements. We perform an information-theoretic security analysis of our protocol and compare its key rate to that of a high-dimensional BB84 protocol over depolarization and amplitude damping channels.

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