Global entanglement and coherent states in an N-partite system

Date
Authors
Dömötör, P.
Benedict, M. G.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We consider a quantum system consisting of N parts, each of which is a "quKit" described by a K dimensional Hilbert space. We prove that in the symmetric subspace, S, a pure state is not globally entangled, if and only if it is a coherent state. It is also shown that in the orthogonal complement all states are globally entangled.
Keywords
Quantum Physics
Citation
Collections