On the Relation between Quantum Discord and Purified Entanglement
| dc.contributor.author | Webster, Eric | |
| dc.date.accessioned | 2013-08-30T17:31:04Z | |
| dc.date.available | 2013-08-30T17:31:04Z | |
| dc.date.issued | 2013-08-30T17:31:04Z | |
| dc.date.submitted | 2013-08-23 | |
| dc.description.abstract | In this thesis, I study bipartite discord between A and B in terms of the structure formed by the bipartite and tripartite entanglement found in the purified system ABC. I find that discord manifests itself only when there is both tripartite and bipartite entanglement present in the purification. This allows one to understand the asymmetry of quantum discord, D(A|B) ≠ D(B|A) in terms of entanglement monogamy. For the cases where AB has rank two and for two-mode Gaussian states, I find that discord also necessarily appears whenever there is tripartite and bipartite entanglement in ABC. As a result of this, some light is shed on a counter-intuitive property of Gaussian states: the presence of classical correlations necessarily requires the presence of quantum discord. Finally, these results are found to be closely linked to the protocol for remote activation of entanglement by a third party. | en |
| dc.identifier.uri | http://hdl.handle.net/10012/7798 | |
| dc.language.iso | en | en |
| dc.pending | false | en |
| dc.publisher | University of Waterloo | en |
| dc.subject | quantum | en |
| dc.subject | discord | en |
| dc.subject | entanglement | en |
| dc.subject | information | en |
| dc.subject.program | Applied Mathematics (Quantum Information) | en |
| dc.title | On the Relation between Quantum Discord and Purified Entanglement | en |
| dc.type | Master Thesis | en |
| uws-etd.degree | Master of Mathematics | en |
| uws-etd.degree.department | Applied Mathematics | en |
| uws.peerReviewStatus | Unreviewed | en |
| uws.scholarLevel | Graduate | en |
| uws.typeOfResource | Text | en |