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On the Complexity of the Circuit Width Problem
Montanaro’s polynomial representation expresses amplitudes of quantum circuits over the gates $H$, $Z$, $CZ$, and $CCZ$ as …
Zhengfeng Ji, Yinchen Liu, Zhe'ou Zhou
PDF 引用 arXiv
A Voxel-Based Quantum Computing Method (VBQC) for Solid Mechanics Problem
Quantum computing presents a promising method to overcome the efficiency and memory constraints in large-scale mechanical problems, …
Feng Wu, Yuxiang Yang, Li Zhu, Chen Li, Yansong Guo, Xu Guo
PDF 引用 arXiv
GreenPeas: Unlocking adaptive quantum error correction with just-in-time decoding hypergraphs
Circuit-level decoders are essential for the realisation of low-overhead fault-tolerant quantum computing. However, they rely on …
Abbas B. Ziad, Jubo Xu, Hongxiang Fan
PDF 引用 arXiv
DQC1-completeness of normalized trace estimation for functions of log-local Hamiltonians
We study the computational complexity of estimating the normalized trace $2^{-n}\mathrm{Tr}[f(A)]$ for a log-local Hamiltonian $A$ …
Zhengfeng Ji, Tongyang Li, Changpeng Shao, Xinzhao Wang, Yuxin Zhang
PDF 引用 arXiv
SesQ: A Surface Electrostatic Simulator for Precise Energy Participation Ratio Simulation in Superconducting Qubits
An accurate and efficient numerical electromagnetic model for superconducting qubits is essential for characterizing and minimizing …
Ziang Wang, Shuyuan Guan, Feng Wu, Xiaohang Zhang, Qiong Li, Jianxin Chen, Xin Wan, Tian Xia, Huihai Zhao
PDF 引用 arXiv
Learning to Decode in Parallel: Self-Coordinating Neural Network for Real-Time Quantum Error Correction
Fast, reliable decoders are pivotal components for enabling fault-tolerant quantum computation (FTQC). Neural network decoders like …
Kai Zhang, Zhengzhong Yi, Shaojun Guo, Linghang Kong, Situ Wang, Xiaoyu Zhan, Tan He, Weiping Lin, Tao Jiang, Dongxin Gao, Yiming Zhang, Fangming Liu, Fang Zhang, Zhengfeng Ji, Fusheng Chen, Jianxin Chen
PDF 引用 arXiv
Scalable Quantum Error Mitigation with Neighbor-Informed Learning
Noise in quantum hardware is the primary obstacle to realizing the transformative potential of quantum computing. Quantum error …
Zhenyu Chen, Bin Cheng, Minbo Gao, Xiaodie Lin, Ruiqi Zhang, Zhaohui Wei, Zhengfeng Ji
PDF 引用 arXiv
Lévy-Khintchine Structure Enables Fast-Forwardable Lindbladian Simulation
Simulation of open quantum systems is an area of active research in quantum algorithms. In this work, we revisit the connection between …
PDF 引用 arXiv
Quantum Design Automation: Foundations, Challenges, and the Road Ahead
Quantum computing is transitioning from laboratory research to industrial deployment, yet significant challenges persist: system …
PDF 引用 arXiv
Quantum Nonlocality under Latency Constraints
Bell inequalities are bounds on the correlations between different parties obeying a local hidden variable theory. Here, …
Dawei Ding, Zhengfeng Ji, Pierre Pocreau, Mingze Xu, Xinyu Xu
PDF 引用 arXiv