16 citations · 39 across the 18 of their papers we have counts for
18 papers
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…
Entanglement distillation in terms of Schmidt rank and matrix rank
Tianyi Ding, Lin Chen
Entanglement distillation is a key task in quantum-information processing. In this paper, we distill non-positive-partial-transpose (NPT) bipartite states of some given Schmidt ran…
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…
Certifying randomness in quantum state collapse
Liang-Liang Sun, Xingjian Zhang, Xiang Zhou +4
The unpredictable process of state collapse caused by quantum measurements makes the generation of quantum randomness possible. In this paper, we explore the quantitive connection…
Uncertainty-disturbance relations and applications
Liang-Liang Sun, Kishor Bharti, Xiang Zhou +3
Uncertainty and intrinsic measurement disturbance, two fundamental concepts in quantum measurement, have conventionally been viewed as distinct and studied separately. In this work…
No Disturbance Without Uncertainty as a Physical Principle
Liang-Liang Sun, Xiang Zhou, Sixia Yu
Finding physical principles lying behind quantum mechanics is essential to understand various quantum features, e.g., the quantum correlations, in a theory-independent manner. Here…
Uncertainty-Complementarity Balance as a General Constraint on Non-locality
Liang-Liang Sun, Sixia Yu, Zeng-Bing Chen
We propose an uncertainty-complementarity balance relation and build quantitative connections among non-locality, complementarity, and uncertainty. Our balance relation, which is f…
Theory-Independent Measure of Coherence
Liang-Liang Sun, Fei-Lei Xiong, Sixia Yu +1
We provide a theory independent framework to quantify coherence. In comparison with Bell's theory independent approach to quantum nonlocality, we characterize a general coherence p…
Classification of the Entangled States of
Kang-Kang Jia, Jun-Li Li, Cong-Feng Qiao
In this work we propose a practical entanglement classification scheme for pure states of , under the stochastic local operation and classical co…
Non-commuting Observables are Jointly Measureable under Disturbance Correction Strategy
Liang-Liang Sun, Yong-Shun Song, Zhi-Xin Chen +1
In the study of Heisenberg's error-disturbance relation, it is commonly believed that the non-unitary change of states hinders us from deducing the information encoded in original…
Classification of the Entangled States of
Liang-Liang Sun, Jun-Li Li, Cong-Feng Qiao
We present a practical entanglement classification scheme for pure state in form of under the stochastic local operation and classical communication (SL…