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On Bell's theorem for N-qubits

✍ Scribed by M. Żukowski; C. Brukner

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
103 KB
Volume
51
Category
Article
ISSN
0015-8208

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✦ Synopsis

Abstract

We present a single general Bell inequality that summarizes all possible Bell type constrains on the correlation function for the N‐particle system (i.e., it is a necessary and sufficient condition for the existence of local realistic models for the correlation function). It is applicable in the case when measurements on each particle can be chosen between two arbitrary dichotomic observables. We also obtain a necessary and sufficient condition for an arbitrary N‐qubit mixed state to violate this general Bell inequality.

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On greene's theorem for digraphs
On greene's theorem for digraphs
✍ Irith Ben-Arroyo Hartman; Fathi Saleh; Daniel Hershkowitz 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 328 KB

## Abstract Greene's Theorem states that the maximum cardinality of an optimal __k__‐path in a poset is equal to the minimum __k__‐norm of a __k__‐optimal coloring. This result was extended to all acyclic digraphs, and is conjectured to hold for general digraphs. We prove the result for general dig