16 citations · 34 across the 9 of their papers we have counts for
9 papers · 1 filter
Harnessing Non-convex Quantum Correlations of Independent Qubits
Liang-Liang Sun, Xiang Zhou, Chengjie Zhang +3
Quantum correlations in Bell and prepare-and-measure experiments are central resources for probing nonclassicality and enabling device-based quantum information protocols. In the a…
Entanglement Detection Beyond Local Bound with Coarse Calibrated measurements
Liang-Liang Sun, Yong-Shun Song, Sixia Yu
Bell's test, initially devised to distinguish quantum theory from local hidden variable models through {violations of local bounds}, is also a common tool for detecting entanglemen…
Specifying the Intrinsic Back-action of a General Measurement
Liang-Liang Sun, Armin Tavakoli, René Schwonnek +3
Understanding the invasive nature of quantum measurement and its implications in quantum foundations and information science demands a mathematically rigorous and physically well-g…
Exploring the boundary of quantum network states from inside out
Xiang Zhou, Zhen-Peng Xu, Liang-Liang Sun +2
Quantum networks with bipartite resources and shared randomness present the simplest infrastructure for implementing a future quantum internet. Here, we shall investigate which kin…
Bounding the amount of entanglement from witness operators
Liang-Liang Sun, Xiang Zhou, Armin Tavakoli +2
We present an approach to estimate the operational distinguishability between an entangled state and any separable state directly from measuring an entanglement witness. We show th…
Lower-bounding entanglement with nonlocality in a general Bell's scenario
Liang-Liang Sun, Xiang Zhou, Zhen-Peng Xu +1
Understanding the quantitative relation between entanglement and Bell nonlocality is a long-standing open problem of fundamental and practical interest. Here, we tackle this proble…
Quantum network-entanglement measures
Zhen-Peng Xu, Julio I. de Vicente, Liang-Liang Sun +1
Quantum networks are of high interest nowadays and a quantum internet has been long envisioned. Network-entanglement adapts the notion of entanglement to the network scenario and n…
From entanglement to discord: a perspective based on partial transposition
Sun Liang-Liang, Zhou Xiang, Yu Sixia
Here, we show that partial transposition, which is initially introduced to study entanglement, can also inspire many results on quantum discord including: (I) a discord criterion o…
Universal Method to Estimate Quantum Coherence
Sun Liang Liang, Yu Sixia
Coherence is a defining property of quantum theory that accounts for quantum advantage in many quantum information tasks. Although many coherence quantifiers have been introduced i…