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quant-ph2026
Multiple fidelities and joint numerical range
Pei Li, Bang-Hai Wang
We investigate the effectiveness of entanglement detection based on multiple fidelities via the geometry of the joint separable numerical range. When all reference states are produ…
quant-ph2024
Internal Boundary between Entanglement and Separability Within a Quantum State
Bang-Hai Wang
Quantum states are the key mathematical objects in quantum mechanics, and entanglement lies at the heart of the nascent fields of quantum information processing and computation. Ho…
quant-ph2024
An RNN-policy gradient approach for quantum architecture search
Gang Wang, Bang-Hai Wang, Shao-Ming Fei
Variational quantum circuits are one of the promising ways to exploit the advantages of quantum computing in the noisy intermediate-scale quantum technology era. The design of the…