Bounds of concurrence and their relation with fidelity and frontier states
arXiv:0808.2077 · doi:10.1016/j.physleta.2009.03.009
Abstract
The bounds of concurrence in [F. Mintert and A. Buchleitner, Phys. Rev. Lett. 98 (2007) 140505] and [C. Zhang \textit{et. al.}, Phys. Rev. A 78 (2008) 042308] are proved by using two properties of the fidelity. In two-qubit systems, for a given value of concurrence, the states achieving the maximal upper bound, the minimal lower bound or the maximal difference upper-lower bound are determined analytically.
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Cited by in corpus (7)
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- Entanglement detection via tighter local uncertainty relations
- Fidelity induced distance measures for quantum states
- Nonlocal correlations for manifold quantum systems: Entanglement of two-spin states
- Reliable experimental quantification of bipartite entanglement without reference frames
- Estimating Concurrence via Entanglement Witnesses
- D-concurrence bounds for pair coherent states