149 citations · 195 across the 9 of their papers we have counts for
9 papers
A -partite entanglement measure of -partite quantum states
Yan Hong, Xianfei Qi, Ting Gao +1
The concept of \textquotedblleft the permutationally invariant part of a density matrx\textquotedblright constitutes an important tool for entanglement characterization of multiqub…
Detection of the quantum states containing at most unentangled particles
Yan Hong, Xianfei Qi, Ting Gao +1
There are many different classifications of entanglement for multipartite quantum systems, one of which is based on the number of unentangled particles. In this paper, we mainly st…
Detection of multipartite entanglement via quantum Fisher information
Yan Hong, Xianfei Qi, Ting Gao +1
In this paper, we focus on two different kinds of multipartite correlation, -nonseparability and -partite entanglement, both of which can describe the essential characteristi…
The verification of a requirement of entanglement measures
Xianfei Qi, Ting Gao, Fengli Yan
The quantification of quantum entanglement is a central issue in quantum information theory. Recently, Gao \emph{et al}. ( \href{http://dx.doi.org/10.1103/PhysRevLett.112.180501}{P…
Strong superadditivity relations for multiqubit systems
Xianfei Qi, Ting Gao, Fengli Yan
We investigate the distributions of quantum coherence characterized by superadditivity relations in multipartite quantum systems. General superadditivity inequalities based on the…
Quantifying the quantumness of ensembles via unitary similarity invariant norms
Xianfei Qi, Ting Gao, Fengli Yan
The quantification of the quantumness of a quantum ensemble has theoretical and practical significance in quantum information theory. We propose herein a class of measures of the q…
Necessary and sufficient product criteria for quantum states via the rank of realignment matrix of density matrix
Xianfei Qi, Ting Gao, Fengli Yan
We present a necessary and sufficient product criterion for bipartite quantum states based on the rank of realignment matrix of density matrix. Then, this approach is generalized t…
Measuring Coherence with Entanglement Concurrence
Xianfei Qi, Ting Gao, Fengli Yan
Quantum coherence is a fundamental manifestation of the quantum superposition principle. Recently, Baumgratz \emph{et al}. [Phys. Rev. Lett. \textbf{113}, 140401 (2014)] presented…
Lower bounds of concurrence for -qubit systems and the detection of -nonseparability of multipartite quantum systems
Xianfei Qi, Ting Gao, Femgli Yan
Concurrence, as one of entanglement measures, is a useful tool to characterize quantum entanglement in various quantum systems. However, the computation of the concurrence involves…