Progress towards a small-scale quantum annealer II: Device characterization and ultra-strong tunable coupling
ORAL
Abstract
We discuss experimental progress with fluxmon qubits and tunable couplers for quantum annealing. We summarize measurements of ultra-strong tunable coupling, crosstalk, and coherence in the first few iterations of two-qubit coupled fluxmon devices, including both planar and 3D circuit architectures compatible with high connectivity. We explore the range of validity of the Born-Oppenheimer and two-level approximations, and also discuss techniques for automated device calibration and accurate, scalable device modeling.
*This work was supported by Google, Inc. and the NSF GRFP.
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