Pattern Based Quantum Key Distribution using the five qubit perfect code for eavesdropper detection

TL;DR

This paper introduces a quantum key distribution protocol utilizing the five qubit perfect code to reliably detect eavesdroppers by transforming their disturbances into detectable pattern signatures, enhancing security over quantum channels.

Contribution

It presents a novel QKD protocol that encodes logical qubits with specific patterns using the five qubit code for improved eavesdropper detection.

Findings

Eavesdropper disturbances become detectable through pattern signatures.

Incorrect pattern decoding increases multi-qubit error rates.

The protocol is secure up to a certain transmission distance.

Abstract

I propose a new quantum key distribution protocol that uses the five qubit error correction code to detect the presence of eavesdropper reliably. The protocol turns any information theoretical attacks into a classical guess about the pattern. The logical qubit is encoded with a specific pattern into a block of five physical qubits. The security of the protocol relies on the correct pattern choice of Alice and Bob. Decoding with any wrong pattern choice increases multi qubit error rate and the 5 qubit code transforms an eavesdropper's logical disturbance into a signature that is detectable and distinguishable from natural channel noise up to a certain distance.