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Quantum memories for telecommunication networks

Defense Thèse de doctorat : Univ. Genève, 2010 - Sc. 4275 - 2010/12/07
Abstract Quantum memories for light are the building blocks of quantum repeaters which would allow to extend the distance of quantum communication schemes far beyond what is feasible today. The implementation of a quantum memory at telecommunication-wavelength is of great interest in this context. A proof of principle experiment of such a device showing the storage and retrieval of light at the single photon level in an erbium doped solid was successfully carried out. Furthermore, important steps towards the implementation of a quantum memory with a high temporal multimode capacity and very long storage times were made. Besides the realization of light storage experiments, a study of the absorption structure of the rare-earth-ion-doped materials used was made and a spectral holeburning techniques were developped, allowing for memory experiments.
Keywords Quantum memoriesErbiumRare-earth ionsEuropiumPraseodymiumTelecommunicationOptical pumpingSpectroscopySpectral holeburningPopulation transferAtomic frequency combAFCCRIBQuantum informationQuantum communication
URN: urn:nbn:ch:unige-132495
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LAURITZEN, Bjorn. Quantum memories for telecommunication networks. Université de Genève. Thèse, 2010. doi: 10.13097/archive-ouverte/unige:13249 https://archive-ouverte.unige.ch/unige:13249

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Deposited on : 2011-01-25

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