3 papers
quant-ph2026
Radial Convex Geometry of Quantum States and Its Relation to Best Separable Approximation
Haonan Qiang
We study bipartite entanglement from the convex geometry of quantum states. Taking the maximally mixed state as a reference point, we define a geometric entangled-space quantity $G…
quant-ph2025
Identifying the -qubit state with quantum uncertainty relation
Zhi-Jie Liu, Hao-Nan Qiang, Jie Zhou +2
The state, a canonical representative of multipartite quantum entanglement, plays a crucial role in quantum information science due to its robust entanglement properties. Quant…
quant-ph2024
Entanglement measurement based on convex hull properties
Hao-Nan Qiang, Jing-Ling Chen
Quantum entanglement is a unique correlation phenomenon in quantum mechanics, and the measurement of quantum entanglement plays an important role in quantum computing and quantum c…