Physics – Condensed Matter – Superconductivity
Scientific paper
2009-01-23
Supercond. Sci. Technol. 22 (2009) 034009
Physics
Condensed Matter
Superconductivity
20 pages, 7 figures, accepted for publication in Supercond. Sci. Technol
Scientific paper
10.1088/0953-2048/22/3/034009
Superconducting quantum circuits are promising systems for experiments testing fundamental quantum mechanics on a macroscopic scale and for applications in quantum information processing. We report on the fabrication and characterization of superconducting flux qubits, readout dc SQUIDs, on-chip shunting capacitors, and high-quality coplanar waveguide resonators. Furthermore, we discuss the tunability and fundamental symmetry aspects inherent to all superconducting qubits, which can be regarded as artificial solid-state atoms. Comparing them to their natural counterparts, we discuss first and second-order energy shifts due to static control fields. Additionally, we present an intuitive derivation of the first- and second-order matrix elements for level transitions in the presence of a coherent microwave driving.
Deppe Frank
Eggenstein L.
Gross Ralf
Hoffmann Elisabeth
Mariantoni Matteo
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