Error mitigation of entangled states using brainbox quantum autoencoders
arXiv:2303.01134 · doi:10.1038/s41598-024-84171-z
Abstract
Current quantum hardware is subject to various sources of noise that limits the access to multi-qubit entangled states. Quantum autoencoder circuits with a single qubit bottleneck have shown capability to correct error in noisy entangled state. By introducing slightly more complex structures in the bottleneck, the so-called brainboxes, the denoising process can take place faster and for stronger noise channels. Choosing the most suitable brainbox for the bottleneck is the result of a trade-off between noise intensity on the hardware, and the training impedance. Finally, by studying Rényi entropy flow throughout the networks we demonstrate that the localization of entanglement plays a central role in denoising through learning.
arXiv comment13 pages, 10 figures
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