title: Manipulation of Multi-Photon-Entanglement : Applications in Quantum Information Processing creator: Goebel, Alexander Matthias subject: ddc-530 subject: 530 Physics description: Over the last twenty years the field of quantum information processing (QIP) has attracted the attention of many scientists, due to the promise of impressive improvements in the areas of computational speed, communication security and the ability to simulate nature on the micro scale. This thesis describes an experimental work on the physics of multi-photon entanglement and its application in the field of QIP. We have thoroughly developed the necessary techniques to generate multipartite entanglement between up to six photons. By exploiting the developed six-photon interferometer, in this thesis we report for the first time the experimental quantum teleportation of a two-qubit composite system, the realization of multi-stage entanglement swapping, the implementation of a teleportation-based controlled-NOT gate for fault-tolerant quantum computation, the first generation of entanglement in sixpartite photonic graph states and the realization of ‘one-way’ quantum computation with two-photon four-qubit cluster states. The methods developed in these experiments are of great significance both for exploring the field of QIP and for future experiments on the fundamental tests of quantum mechanics. date: 2008 type: Dissertation type: info:eu-repo/semantics/doctoralThesis type: NonPeerReviewed format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/8573/1/Thesis.pdf identifier: DOI:10.11588/heidok.00008573 identifier: urn:nbn:de:bsz:16-opus-85739 identifier: Goebel, Alexander Matthias (2008) Manipulation of Multi-Photon-Entanglement : Applications in Quantum Information Processing. [Dissertation] relation: https://archiv.ub.uni-heidelberg.de/volltextserver/8573/ rights: info:eu-repo/semantics/openAccess rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html language: eng