Classification of multiqubit mixed states: Separability and distillability properties
- 17 March 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 61 (4) , 042314
- https://doi.org/10.1103/physreva.61.042314
Abstract
We give a complete, hierarchic classification for arbitrary multiqubit mixed states based on the separability properties of certain partitions. We introduce a family of N-qubit states to which any arbitrary state can be depolarized. This family can be viewed as the generalization of Werner states to multiqubit systems. We fully classify those states with respect to their separability and distillability properties. This provides sufficient conditions for nonseparability and distillability for arbitrary states.Keywords
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