| dc.contributor.author |
Chruściński, Dariusz |
| dc.date.accessioned |
2012-11-29T17:55:11Z |
| dc.date.available |
2012-11-29T17:55:11Z |
| dc.date.issued |
2011-08-10 |
| dc.identifier.uri |
http://repozytorium.umk.pl/handle/item/161 |
| dc.description.abstract |
It is well known that so called Breuer-Hall positive maps used in entanglement theory are optimal. We show that these maps possess much more subtle property --- they are exposed. As a byproduct it proves that a Robertson map in the algebra of 4 x 4 complex matrices is not only extreme, which was already shown by Robertson, but also exposed. |
| dc.language.iso |
eng |
| dc.relation.uri |
http://arxiv.org/abs/1108.2233 |
| dc.rights |
info:eu-repo/semantics/openAccess |
| dc.subject |
Quantum Physics |
| dc.subject |
Mathematical Physics |
| dc.title |
On exposed positive maps: Robertson and Breuer-Hall maps |
| dc.type |
info:eu-repo/semantics/article |
