5 papers · 1 filter
Dynamics Simulation of Arbitrary Non-Hermitian Systems Based on Quantum Monte Carlo
Xiaogang Li, Kecheng Liu, Qiming Ding
Non-Hermitian quantum systems exhibit unique properties and hold significant promise for diverse applications, yet their dynamical simulation poses a particular challenge due to in…
Quantum Error Mitigation for Sampling Algorithms
Kecheng Liu, Zhenyu Cai
Recent experimental breakthroughs have signalled the imminent arrival of the early fault-tolerant era. However, for a considerable period in the foreseeable future, relying solely…
Robust Mølmer-Sørensen Gate Against Symmetric and Asymmetric Errors
Wenhao Zhang, Gaoxiang Tang, Kecheng Liu +4
To achieve the entangling gate fidelity above the quantum error correction threshold, it is critical to suppress errors due to experimental imperfection. We consider the Mølmer-SÅ
ECDQC: Efficient Compilation for Distributed Quantum Computing with Linear Layout
Kecheng Liu, Yidong Zhou, Haochen Luo +6
In this paper, we propose an efficient compilation method for distributed quantum computing (DQC) using the Linear Nearest Neighbor (LNN) architecture. By exploiting the LNN topolo…
Separable Power of Classical and Quantum Learning Protocols Through the Lens of No-Free-Lunch Theorem
Xinbiao Wang, Yuxuan Du, Kecheng Liu +3
The No-Free-Lunch (NFL) theorem, which quantifies problem- and data-independent generalization errors regardless of the optimization process, provides a foundational framework for…