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URN: urn:nbn:de:swb:90-418752

Superconducting flux qubits with pi-junctions = Supraleitende Flussqubits mit pi-Kontakten

Shcherbakova, Anastasia

Abstract:
In this thesis, we present a fabrication technology of Al/AlOx/Al Josephson junctions on Nb pads. The described technology gives the possibility of combining a variety of Nb-based superconducting circuits, like pi-junction phase-shifters with sub-micron Al/AlOx/Al junctions. Using this approach, we fabricated hybrid Nb/Al flux qubits with and without the SFS-junctions and studied dispersive magnetic field response of these qubits as well as their spectroscopy characteristics.


Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Hochschulschrift
Jahr 2014
Sprache Englisch
Identifikator KITopen ID: 1000041875
Verlag Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Physikalisches Institut (PHI)
Prüfungsdaten 16.05.2014
Referent/Betreuer Prof. A. V. Ustinov
Schlagworte flux qubits, pi-junctions, Josephson junctions
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