How to fool the GHZ and W witnesses

2005/06/04 by D. Cavalcanti, M. O. Terra Cunha, Cavalcanti, D. +1
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph

paper · pdf · doi:10.48550/arxiv.quant-ph/0506035

6 pages, 1 figure

arxiv created 2005/06/04 · arxiv updated 2009/12/01

Abstract

In spite of the fact that there are only two classes of three-qubit genuine entanglement: W and GHZ, we show that there are three-qubit genuinely entangled states which can not be detected neither by W nor by GHZ entanglement witnesses.

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