312 citations · 696 across the 27 of their papers we have counts for
7 papers · 2 filters
Detection and measure of genuine tripartite entanglement with partial transposition and realignment of density matrices
Ming Li, Jing Wang, Shuqian Shen +2
It is challenging task to detect and measure genuine multipartite entanglement. We investigate the problem by considering the average based positive partial transposition(PPT) crit…
Quantum steerability based on joint measurability
Zhihua Chen, Xiangjun Ye, Shaoming Fei
Occupying a position between entanglement and Bell nonlocality, Einstein-Podolsky-Rosen (EPR) steering has attracted increasing attention in recent years. Many criteria have been p…
Uncertainty conservation relations: theory and experiment
Hengyan Wang, Zhihao Ma, Shengjun Wu +8
As a very fundamental principle in quantum physics, uncertainty principle has been studied intensively via various uncertainty inequalities. Based on the information measure introd…
Coherence generating power of unitary transformations via probabilistic average
Lin Zhang, Zhihao Ma, Zhihua Chen +1
We study the ability of a quantum channel to generate quantum coherence when it applies to incoherent states. Based on probabilistic averages, we define a measure of such coherence…
Spectral density of mixtures of random density matrices for qubits
Lin Zhang, Jiamei Wang, Zhihua Chen
We derive the spectral density of the equiprobable mixture of two random density matrices of a two-level quantum system. We also work out the spectral density of mixture under the…
Sharp Continuity Bounds for Entropy and Conditional Entropy
Zhihua Chen, Zhihao Ma, Ismail Nikoufar +1
The Renyi entropy plays an essential role in quantum information theory. We study the continuity estimation of the Renyi entropy. An inequality relating the Renyi entropy differenc…