I want to thank, in first place, my supervisor Miriam Blaauboer for giving me the opportunity to work in her group in Delft, for introducing me to the field of circuit quantum electrodynamics and superconducting qubits, for her guidance and good advices and also for all the time she dedicated to me. I also want to acknowledge my supervisor in Leiden, C. W. J. Beenakker. Without his approval I would not have been allowed to do the research project in an external institution.
During the two years I have been in the Netherlands I have learned a lot, and not only abut physics. Studying abroad has been a good experience, mostly be- cause of all the colleagues and friends I have met, both in Leiden and in Delft. I especially want to thank all the numerous people I have sheared the office with for the nice environment they provided.
This thesis would not have been possible without my family. I want to thank them for their emotional and also financial support, for giving me the opportunity to study abroad and for visiting me in the Netherlands from time to time.
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