Entanglement of formation and concurrence for mixed states
Xiu-Hong Gao, Albeverio Sergio, Kai Chen, Shao-Ming Fei, Xianqing Li‐Jost · Frontiers of Computer Science in China · 2008
We review some results on analytical computations of the measures for quantum entanglement: entanglement of formation and concurrence. We introduce some estimations of the lower bounds for the entanglement of formation in bipartite mixed states, and of lower bounds for the concurrence in bipartite and tripartite systems. The results on lower bounds for the concurrence are also generalized to arbitrary multipartite systems.