Protocolo Baseado em Feedback para Correção de Ruído Quântico: Proposta e Avaliação Teórica

Abstract

In this paper,we presented an innovative quantum noise correction protocol based on feedback, using test qubits to monitor and correct noise in quantum channels. The protocol is compared to well-established methods, such as repetition codes and the Shor code, evaluating its efficiency through metrics like fidelity and coherence. Our results show that the feedback-based protocol is particularly effective in highly noisy environments, offering advantages in terms of average fidelity. However, it presents limitations in preserving coherence for certain types of noise, especially phase-flip. This research contributes to the advancement of noise correction techniques in quantum computing, highlighting the practical potential of the proposed protocol.