Superposition rule and entanglement in diagonal and probability representations of density states

Details Superposition rule and entanglement in diagonal and probability representations of density states Superposition rule and entanglement in diagonal and probability representations of density states

2009-02-25

arxiv.org/abs/0902.4351v1

Physics

Quantum Physics

Invited talk presented at the XV Central European Workshop on Quantum Optics (Belgrade, Serbia, 30 May -- 3 June 2008), to app

Scientific paper

The quasidistributions corresponding to the diagonal representation of quantum states are discussed within the framework of operator-symbol construction. The tomographic-probability distribution describing the quantum state in the probability representation of quantum mechanics is reviewed. The connection of the diagonal and probability representations is discussed. The superposition rule is considered in terms of the density-operator symbols. The separability and entanglement properties of multipartite quantum systems are formulated as the properties of the density-operator symbols of the system states.

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