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Entanglement witnesses arising from Choi type positive linear maps

2014.07.23 15:31

실적년도	2012년
논문구분	국외
총저자	Kil-Chan Ha, Seung-Hyeok Kye
학술지명	Journal of Physics A: Mathematical and Theoretical
권(Vol.)	45
호(No.)	41
게재년월	2012년 10월
Impact Factor
SCI 등재	SCI
비고

We construct optimal PPTES witnesses to detect 33 PPT entangled edge states of type (6, 8) constructed recently by Kye and Osaka (2012 J. Math. Phys. 53 052201). To do this, we consider positive linear maps which are variants of the Choi type map involving complex numbers, and examine several notions related to the optimality of those entanglement witnesses. Throughout the discussion, we suggest a method to check the optimality of entanglement witnesses without the spanning property.

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