6 papers
Can scrambling protect quantum state distinguishability under noise?
Guoding Liu, Chushi Qin, Zitai Xu +2
Quantum state distinguishability is a fundamental concept in quantum information science that underpins a wide range of important practical tasks. Traditionally formulated for pair…
Approximate Quantum Error Correction with 1D Log-Depth Circuits
Guoding Liu, Zhenyu Du, Zi-Wen Liu +1
Efficient and high-performance quantum error correction is essential for achieving fault-tolerant quantum computing. Low-depth random circuits offer a promising approach to identif…
Benchmarking non-Clifford gates using only Pauli twirling group
Han Ye, Guoding Liu, Xiongfeng Ma
Quantum gate benchmarking is unavoidably influenced by state preparation and measurement errors. Randomized benchmarking addresses this challenge by employing group twirling to reg…
Calibrating quantum gates up to 52 qubits in a superconducting processor
Daojin Fan, Guoding Liu, Shaowei Li +18
Benchmarking large-scale quantum gates, typically involving multiple native two-qubit and singlequbit gates, is crucial in quantum computing. Global fidelity, encompassing informat…
Optimizing Circuit Reusing and its Application in Randomized Benchmarking
Zhuo Chen, Guoding Liu, Xiongfeng Ma
Quantum learning tasks often leverage randomly sampled quantum circuits to characterize unknown systems. An efficient approach known as "circuit reusing," where each circuit is exe…
Advantage Distillation for Quantum Key Distribution
Zhenyu Du, Guoding Liu, Xingjian Zhang +1
Quantum key distribution promises information-theoretically secure communication, with data post-processing playing a vital role in extracting secure keys from raw data. While hard…