A Secure Quantum Key Distribution Protocol Using Two-Particle Transmission

• URL: http://arxiv.org/abs/2403.13634v3
• Date: Fri, 12 Apr 2024 13:51:40 GMT
• Title: A Secure Quantum Key Distribution Protocol Using Two-Particle Transmission
• Authors: Pratapaditya Bej, Vinod Jayakeerthi,
• Abstract summary: Unextendible Product Bases (UPBs) hold promise in quantum cryptography due to their inherent indistinguishability. This work introduces a protocol utilizing UPBs to establish quantum keys between distant parties.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The evolution of Quantum Key Distribution (QKD) relies on innovative methods to enhance its security and efficiency. Unextendible Product Bases (UPBs) hold promise in quantum cryptography due to their inherent indistinguishability, yet they are underutilized in QKD protocols. This work introduces a protocol utilizing UPBs to establish quantum keys between distant parties. Specifically, we propose a protocol utilizing a $3\times 3$ tile UPB, where Alice sequentially transmits subsystem states to Bob through quantum channels. The protocol's security is underpinned by the no-cloning theorem, prohibiting the cloning of orthogonal states. We analyze potential attacks, including intercept-resend and detector blinding attacks when quantum channels are noiseless, and discuss the challenges posed by the indistinguishability of our protocol for eavesdroppers, thereby enhancing QKD security.

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