Error mitigation via stabilizer measurement emulation
A. Greene, M. Kjaergaard, M. E. Schwartz, G. O. Samach, A. Bengtsson, M. O'Keeffe, D. K. Kim, M. Marvian, A. Melville, B. M. Niedzielski, A. Vepsalainen, R. Win… 展开作者
A. Greene, M. Kjaergaard, M. E. Schwartz, G. O. Samach, A. Bengtsson, M. O'Keeffe, D. K. Kim, M. Marvian, A. Melville, B. M. Niedzielski, A. Vepsalainen, R. Winik, J. Yoder, D. Rosenberg, S. Lloyd, T. P. Orlando, I. Marvian, S. Gustavsson, W. D. Oliver
Dynamical decoupling (DD) is a widely-used quantum control technique that takes advantage of temporal symmetries in order to partially suppress quantum errors without the need resource-intensive error detection and correction protocols. This and other open-loop error mitigation techniques are critical for quantum information processing in the era of Noisy Intermediate-Scale Quantum technology. However, despite its utility, dynamical decoupling does not address errors which occur at unstructured times during a circuit, including certain commonly-encountered noise mechanisms such as cross-talk and imperfectly calibrated control pulses. Here, we introduce and demonstrate an alternative technique - `quantum measurement emulation' (QME) - that effectively emulates the measurement of stabilizer operators via stochastic gate application, leading to a first-order insensitivity to coherent errors. The QME protocol enables error suppression based on the stabilizer code formalism without the need for costly measurements and feedback, and it is particularly well-suited to discrete coherent errors that are challenging for DD to address.
False Positives Raised by Quantum Readout Error Mitigation
Beijing Academy of Quantum Information Sciences（北京量子信息科学研究院）；Institute of Physics, Chinese Academy of Sciences（中国科学院物理研究所）；University of Chinese Academy of Sciences（中国科学院大学）；State Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China（中国科学技术大学精密与智能化学重点实验室）；Institute of High Energy Physics, Chinese Academy of Sciences（中国科学院高能物理研究所）；Hefei National Laboratory（合肥国家实验室）
Noise tailoring for error mitigation and for diagnozing digital quantum computers
Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology（卡尔斯鲁厄理工学院量子材料与技术研究所）；Laboratoire de Physique Théorique, Université de Toulouse, CNRS（图卢兹大学理论物理实验室）；University of Strasbourg and CNRS, CESQ and ISIS (UMR 7006), aQCess（斯特拉斯堡大学与法国国家科学研究中心CESQ及ISIS联合研究单位）；QPerfect SAS（QPerfect公司）；Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, PHELIQS（格勒诺布尔阿尔卑斯大学、法国原子能和替代能源委员会、格勒诺布尔理工学院）
Scalable Simulation of Fermionic Encoding Performance on Noisy Quantum Computers
Institute for Quantum Computing, University of Waterloo（量子计算研究所，滑铁卢大学）；David R. Cheriton School of Computer Science, University of Waterloo（大卫·R·切里顿计算机科学学院，滑铁卢大学）；Perimeter Institute for Theoretical Physics（理论物理前沿研究所）；Department of Physics and Astronomy, University of Waterloo（物理与天文学系，滑铁卢大学）
Probabilistic Error Cancellation for Single-Mode Gottesman-Kitaev-Preskill Codes
Institute for Quantum Computing Analytics (PGI-12), Forschungszentrum Jülich（于利希研究中心量子计算分析研究所）；Theoretical Physics, Universität des Saarlandes（萨尔兰州立大学理论物理）；Forschungszentrum Jülich（于利希研究中心）
