Fidelity, entanglement, and information complementarity relation
arXiv:quant-ph/0609026 · doi:10.1016/j.physleta.2006.11.067
Abstract
We investigate the dynamics of information in isolated multi-qubit systems. It is shown that information is in not only local form but also nonlocal form. We apply a measure of local information based on fidelity, and demonstrate that nonlocal information can be directly related to some appropriate well defined entanglement measures. Under general unitary transformations, local and nonlocal information will exhibit unambiguous complementary behavior with the total information conserved.
5 pages, 3 figures
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- Strong Monogamy of Bipartite and Genuine Multipartite Entanglement: The Gaussian Case
- Multipartite quantum correlation and entanglement in four-qubit pure states
- Bounds of concurrence and their relation with fidelity and frontier states
- Quantum control on entangled bipartite qubits
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