326 citations
- Max Planck Institute for MathematicsDE63 papers
- Capital Normal UniversityCN20 papers
- Max Planck SocietyDE14 papers
- Centre National de la Recherche ScientifiqueFR6 papers
- University of BonnDE5 papers
- Leipzig UniversityDE4 papers
- Central China Normal UniversityCN3 papers
- Fudan UniversityCN3 papers
- Santa Fe InstituteUS3 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT3 papers
- Technische Universität BerlinDE3 papers
- University Hospital MagdeburgDE3 papers
6 papers · 2 filters
Lower Bounds of Concurrence for Tripartite Quantum Systems
Xiu-Hong Gao, Shao-Ming Fei, Ke Wu
We derive an analytical lower bound for the concurrence of tripartite quantum mixed states. A functional relation is established relating concurrence and the generalized partial tr…
Two-Setting Bell Inequalities for Many Qubits
Kai Chen, Sergio Albeverio, Shao-Ming Fei
We present a family of Bell inequalities involving only two measurement settings of each party for N>2 qubits. Our inequalities include all the standard ones with fewer than N qubi…
Separability and Entanglement of Identical Bosonic Systems
Xiao-Hong Wang, Shao-Ming Fei, Ke Wu
We investigate the separability of arbitrary -dimensional multipartite identical bosonic systems. An explicit relation between the dimension and the separability is presented. I…
A Class of Bound Entangled States
Shao-Ming Fei, Xianqing Li-Jost, Bao-Zhi Sun
We construct a set of PPT (positive partial transpose) states and show that these PPT states are not separable, thus present a class of bound entangled quantum states.
Hermitian Tensor Product Approximation of Complex Matrices and Separability
Shao-Ming Fei, Naihuan Jing, Bao-Zhi Sun
The approximation of matrices to the sum of tensor products of Hermitian matrices is studied. A minimum decomposition of matrices on tensor space in terms of the s…
R Function Related to Entanglement of Formation
Shao-Ming Fei, Xianqing Li-Jost
By investigating the convex property of the function R, appeared in computing the entanglement of formation for isotropic states in Phys. Rev. Lett. 85, 2625 (2000), and a tight lo…