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8 papers · 2 filters
Geometric and holonomic quantum computation
Jiang Zhang, Thi Ha Kyaw, Stefan Filipp +3
Geometric and holonomic quantum computation utilizes intrinsic geometric properties of quantum-mechanical state spaces to realize quantum logic gates. Since both geometric phases a…
Statistical Methods for Quantum State Verification and Fidelity Estimation
Xiao-Dong Yu, Jiangwei Shang, Otfried Gühne
The efficient and reliable certification of quantum states is essential for various quantum information processing tasks as well as for the general progress on the implementation o…
Visualizing quantum phase transitions in the XXZ model via the quantum steering ellipsoid
Ming-Ming Du, Da-Jian Zhang, Zhao-Yi Zhou +1
The past two decades have witnessed a surge of interest in borrowing tools from quantum information theory to investigate quantum phase transitions (QPTs). The best known examples…
Experimental quantum state measurement with classical shadows
Ting Zhang, Jinzhao Sun, Xiao-Xu Fang +3
A crucial subroutine for various quantum computing and communication algorithms is to efficiently extract different classical properties of quantum states. In a notable recent theo…
The tightness of multipartite coherence from spectrum estimation
Qi-Ming Ding, Xiao-Xu Fang, He Lu
Detecting multipartite quantum coherence usually requires quantum state reconstruction, which is quite inefficient for large-scale quantum systems. Along this line of research, sev…
Exploring the gap between thermal operations and enhanced thermal operations
Yuqiang Ding, Feng Ding, Xueyuan Hu
The gap between thermal operations (TO) and enhanced thermal operations (EnTO) is an open problem raised in [Phys. Rev. Lett. 115, 210403 (2015)]. It originates from the limitation…