Defeating entanglement sudden death by a single local filtering
arXiv:1205.6601 · doi:10.1103/PhysRevA.86.032304
Abstract
Genuine multipartite entanglement of a quantum system can be partially destroyed by local decoherence. Is it possible to retrieve the entanglement to some extent by a single local operation? The answer to this question depends very much on the type of initial genuine entanglement. For initially pure W and cluster states and if the decoherence is given by generalized amplitude damping, the answer is shown to be positive. In this case, the entanglement retrieving is achieved just by redistributing the remained entanglement of the system.
4 pages, 5 figures
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- Effect of weak measurement on entanglement distribution over noisy channels
- Effectiveness of Depolarizing noise in causing sudden death of entanglement
- Purification and redistribution of entanglement via single local filtering
- The enhancement of quantum entanglement under an open Dirac system with Hawking effect in Schwarzschild space-time
- Symmetries of Multipartite Entanglement Evolution in Many-Sided Local Channels
- Characterization of the measurement uncertainty dynamics in an open system