Publication Date:
2012-06-23
Description:
Author(s): J. Tura, R. Augusiak, P. Hyllus, M. Kuś, J. Samsonowicz, and M. Lewenstein We solve the open question of the existence of four-qubit entangled symmetric states with positive partial transpositions (PPT states). We reach this goal with two different approaches. First, we propose a half-analytical–half-numerical method that allows us to construct multipartite PPT entangled s... [Phys. Rev. A 85, 060302] Published Fri Jun 22, 2012
Keywords:
Quantum information
Print ISSN:
1050-2947
Electronic ISSN:
1094-1622
Topics:
Physics
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