Generic detection-based error mitigation using quantum autoencoders

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Weicheng Kong
  • Muhammad Usman Farooq
  • Man-Hong Yung
  • Guoping Guo

Detail(s)

Original languageEnglish
Article numberL040403
Journal / PublicationPhysical Review A
Volume103
Issue number4
Online published22 Apr 2021
Publication statusPublished - Apr 2021

Abstract

Efficient error-mitigation techniques demanding minimal resources is key to quantum information processing. We propose a generic protocol to mitigate quantum errors using detection-based quantum autoencoders. In our protocol, the quantum data are compressed into a latent subspace while leaving errors outside, the latter of which is then removed by a measurement and postselection. Compared to previously developed methods, our protocol on the one hand requires no extra qubits, and on the other hand it has a near-optimal denoising power, in which under reasonable requirements all errors detected outside of the latent subspace can be removed, while those inside the subspace cannot be removed by any means. Our detection-based quantum autoencoders are therefore particularly useful for near-term quantum devices in which controllable qubits are limited while noise reduction is important.

Citation Format(s)

Generic detection-based error mitigation using quantum autoencoders. / Zhang, Xiao-Ming; Kong, Weicheng; Farooq, Muhammad Usman; Yung, Man-Hong; Guo, Guoping; Wang, Xin.

In: Physical Review A, Vol. 103, No. 4, L040403, 04.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review