Physics – Quantum Physics
Scientific paper
2007-01-12
Quantum Information and Computation 8(8/9) (2008) 0791-0796
Physics
Quantum Physics
5 pages
Scientific paper
We establish a relation between concurrence and entanglement witnesses. In
particular, we construct entanglement witnesses for three-qubit W and GHZ
states in terms of concurrence and different set of operators that generate it.
We also generalize our construction for multi-qubit states.
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