| dc.contributor.author |
Chruściński, Dariusz |
| dc.contributor.author |
Pytel, Justyna |
| dc.date.accessioned |
2012-11-30T08:46:16Z |
| dc.date.available |
2012-11-30T08:46:16Z |
| dc.date.issued |
2010-06-15 |
| dc.identifier.citation |
Phys. Rev. A 82, 052310 (2010) |
| dc.identifier.uri |
http://repozytorium.umk.pl/handle/item/177 |
| dc.description.abstract |
We provide a class of optimal nondecomposable entanglement witnesses for 4N x 4N composite quantum systems or, equivalently, a new construction of nondecomposable positive maps in the algebra of 4N x 4N complex matrices. This construction provides natural generalization of the Robertson map. It is shown that their structural physical approximations give rise to entanglement breaking channels. |
| dc.language.iso |
eng |
| dc.relation.uri |
http://arxiv.org/abs/1006.3059 |
| dc.rights |
info:eu-repo/semantics/openAccess |
| dc.subject |
Quantum Physics |
| dc.subject |
Mathematical Physics |
| dc.title |
Constructing optimal entanglement witnesses. II |
| dc.type |
info:eu-repo/semantics/article |
