Understanding of how quantum states relate to their environment is vital in order to realize quantum technologies. The class of states possessing the maximum amount of entanglement for a given degree of mixedness is known as maximally entangled mixed states (MEMS). In this Thesis protocols for the generation of these states are studied and their use as teleportation channels is examined. Linking different dimensional systems will prove invaluable to the realization of new quantum technologies. Continuous variable resources are quite favorable for generating entanglement: the transfer of correlations from such resources to discrete systems is studied showing the possibility to engineer the properties of two-qubit states almost at will. Finally this work tackles the crucial problem represented by the detection of entanglement. The larger the entangled state to be detected the more challenging the task becomes. A full characterization of experimentally realizable entanglement witnesses able to discriminate genuinely multipartite entangled states is discussed in detail.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:554354 |
| Date | January 2012 |
| Creators | Campbell, S. |
| Publisher | Queen's University Belfast |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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