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On multipartite invariant states I. Unitary symmetry

Dariusz Chruscinski·Andrzej Kossakowski
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Abstract

We propose a natural generalization of bipartite Werner and isotropic states to multipartite systems consisting of an arbitrary even number of d-dimensional subsystems (qudits). These generalized states are invariant under the action of local unitary operations. We study basic properties of multipartite invariant states: separability criteria and multi-PPT conditions.

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Dariusz Chruscinski, Andrzej Kossakowski. 2006-02-01. On multipartite invariant states I. Unitary symmetry. https://doi.org/10.1103/physreva.73.062314

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