6 papers
Flip-chip integrated superconducting qubits using electroplated bump bonds
Yen-An Shih, Rebecca Gharibaan, Barka Khan +9
Flip-chip integration offers a promising route toward scalable superconducting quantum processors and hybrid semiconductor-superconductor quantum devices. We develop a three-dimens…
Experimental Characterization and Modeling of Measurement-Induced State-Transitions in a Fluxonium Superconducting Qubit
Martijn F. S. Zwanenburg, Jinlun Hu, Eugene Y. Huang +3
Superconducting qubits are most often measured using dispersive readout, which, ideally, implements a projective quantum non-demolition (QND) measurement. While a larger readout dr…
Coherence limitations of a Fourier-engineered transmon qubit
Nataliia K. Zhurbina, Siddharth Singh, Lukas J. Splitthoff +4
Intrinsically protected superconducting qubits are a promising route toward enhancing coherence times and advancing hardware towards applications in quantum computing. The $\cos(2Ï…
Fast microwave-driven two-qubit gates between fluxonium qubits with a transmon coupler
Siddharth Singh, Eugene Y. Huang, Jinlun Hu +6
Two qubit gates constitute fundamental building blocks in the realization of large-scale quantum devices. Using superconducting circuits, two-qubit gates have previously been imple…
Single-Qubit Gates Beyond the Rotating-Wave Approximation for Strongly Anharmonic Low-Frequency Qubits
Martijn F. S. Zwanenburg, Siddharth Singh, Eugene Y. Huang +5
Single-qubit gates are in many quantum platforms applied using a linear drive resonant with the qubit transition frequency which is often theoretically described within the rotatin…
Energy participation ratio analysis for very anharmonic superconducting circuits
Figen Yilmaz, Siddharth Singh, Martijn F. S. Zwanenburg +3
Superconducting circuits are being employed for large-scale quantum devices, and a pertinent challenge is to perform accurate numerical simulations of device parameters. One of the…