13 papers
Measurement-and Feedback-Driven Non-Equilibrium Phase Transitions on a Quantum Processor
Zhiyi Wu, Xuandong Sun, Songlei Wang +8
Mid-circuit measurements and feedback operations conditioned on the measurement outcomes are essential for implementing quantum error-correction on quantum hardware. When integrate…
Real-time Surface-Code Error Correction Using an FPGA-based Neural-Network Decoder
Xiaohan Yang, Xuandong Sun, Zhiyi Wu +9
Quantum error correction (QEC) is essential for achieving low error rates required for fault-tolerant quantum computation. In stabilizer-based codes such as the surface code, error…
Experimental observation of exact quantum critical states
Wenhui Huang, Xin-Chi Zhou, Libo Zhang +29
Anderson localization physics features three fundamental types of eigenstates: extended, localized, and critical, with the third one exhibiting the exotic properties in-between the…
Distributed multi-parameter quantum metrology with a superconducting quantum network
Jiajian Zhang, Lingna Wang, Yong-Ju Hai +19
Quantum metrology has emerged as a powerful tool for timekeeping, field sensing, and precision measurements in fundamental physics. With the advent of distributed quantum metrology…
Logical operations with a dynamical qubit in Floquet-Bacon-Shor code
Xuandong Sun, Longcheng Li, Zhiyi Wu +29
Quantum error correction (QEC) protects quantum systems against inevitable noises and control inaccuracies, providing a pathway towards fault-tolerant (FT) quantum computation. Sta…
Dephasing-assisted diffusive dynamics in superconducting quantum circuits
Yongqi Liang, Changrong Xie, Zechen Guo +21
Random fluctuations caused by environmental noise can lead to decoherence in quantum systems. Exploring and controlling such dissipative processes is both fundamentally intriguing…