Denoising quantum mixed states using quantum autoencoders

The presence of noise affects the process of quantum computing and quantum communication, and quantum autoencoders (QAEs) provide a new solution for dealing with this problem. Previous study has shown that QAEs could denoise pure quantum states subject to spin-flip errors and random unitary noise (B...

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Bibliographic Details
Published in:Quantum information processing Vol. 23; no. 2
Main Author: Wang, Ming-Ming
Format: Journal Article
Language:English
Published: New York Springer US 25.01.2024
Subjects:
Data Structures and Information Theory
Mathematical Physics
Physics
Physics and Astronomy
Quantum Computing
Quantum Information Technology
Quantum Physics
Spintronics
Fidelity
Quantum autoencoders
Mixed states
Denoise quantum noise
ISSN:1573-1332, 1573-1332
Online Access:Get full text
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Summary:The presence of noise affects the process of quantum computing and quantum communication, and quantum autoencoders (QAEs) provide a new solution for dealing with this problem. Previous study has shown that QAEs could denoise pure quantum states subject to spin-flip errors and random unitary noise (Bondarenko and Feldmann Phys Rev Lett 124: 130502, 2020). However, avoiding or reducing the interference of noise on mixed states remains an interesting problem in quantum communication and quantum computing. In this paper, the denoising effect of QAEs for mixed states is studied. We investigate the denoising effect of QAEs for a specific type of mixed states in four types of noise usually encountered in the real world, i.e., the bit-flip, the phase-flip, the depolarizing, and the amplitude-damping noise. Simulation results show that the QAEs can significantly denoise four types of noise on mixed states with different noisy and mixed parameters.
ISSN:1573-1332
1573-1332
DOI:10.1007/s11128-023-04239-z