5 papers
Efficient verification of entangled continuous-variable quantum states with local measurements
Ye-Chao Liu, Jiangwei Shang, Xiangdong Zhang
Continuous-variable quantum states are of particular importance in various quantum information processing tasks including quantum communication and quantum sensing. However, a bott…
Universally Optimal Verification of Entangled States with Nondemolition Measurements
Ye-Chao Liu, Jiangwei Shang, Rui Han +1
The efficient and reliable characterization of quantum states plays a vital role in most, if not all, quantum information processing tasks. In this work, we present a universally o…
Efficient verification of quantum processes
Ye-Chao Liu, Jiangwei Shang, Xiao-Dong Yu +1
Quantum processes, such as quantum circuits, quantum memories, and quantum channels, are essential ingredients in almost all quantum information processing tasks. However, the char…
Efficient verification of Dicke states
Ye-Chao Liu, Xiao-Dong Yu, Jiangwei Shang +2
Among various multipartite entangled states, Dicke states stand out because their entanglement is maximally persistent and robust under particle losses. Although much attention has…
Coherence Depletion in Quantum Algorithms
Ye-Chao Liu, Jiangwei Shang, Xiangdong Zhang
Besides the superior efficiency compared to their classical counterparts, quantum algorithms known so far are basically task-dependent, and scarcely any common features are shared…