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arXiv · 0901.3652

Fabrication Technology of and Symmetry Breaking in Superconducting Quantum Circuits

T. Niemczyk·F. Deppe·M. Mariantoni·E. P. Menzel·E. Hoffmann·G. Wild·L. Eggenstein·A. Marx·R. Gross
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Abstract

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.

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T. Niemczyk, F. Deppe, M. Mariantoni, E. P. Menzel, E. Hoffmann, G. Wild, L. Eggenstein, A. Marx, R. Gross. 2009-01-23. Fabrication Technology of and Symmetry Breaking in Superconducting Quantum Circuits. https://doi.org/10.1088/0953-2048%2F22%2F3%2F034009

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