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Hybrid Superconducting Quantum Circuits

The nonlinear I-V characteristics of superconducting (SC) Josephson Junctions (JJs) have recently been employed to create macroscopic electronic quantum bits (qubits). By combining JJ-based qubits with superconducting microwave resonators and co-planar waveguides, researchers have developed what looks to be a very promising technology for fault-tolerant quantum computation. We are developing a hybrid silicon-on-insulator (SOI) microchip platform for integrating JJ-based qubits and other superconducting quantum circuit elements with, for example, photonic and phononic circuits elements such as couplers, waveguides, cavitities and opto-electro-mechanical transducers.