Publication Date:
2014-08-14
Description:
Author(s): Bang-Hai Wang, Hai-Ru Xu, and Simone Severini Any bipartite entanglement witness W can be written as W=cσI−σ, where σ is a quantum state, I is the identity matrix, and cσ is a non-negative number. We present a general method to extend the given entanglement witness to multipartite cases via purification, partial purification, and direct tensor ... [Phys. Rev. A 90, 022312] Published Wed Aug 13, 2014
Keywords:
Quantum information
Print ISSN:
1050-2947
Electronic ISSN:
1094-1622
Topics:
Physics
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