282 citations · 1.3k across the 13 of their papers we have counts for
6 papers · 1 filter
High-Fidelity, Frequency-Flexible Two-Qubit Fluxonium Gates with a Transmon Coupler
Leon Ding, Max Hays, Youngkyu Sung +16
We propose and demonstrate an architecture for fluxonium-fluxonium two-qubit gates mediated by transmon couplers (FTF, for fluxonium-transmon-fluxonium). Relative to architectures…
Extensible circuit-QED architecture via amplitude- and frequency-variable microwaves
Agustin Di Paolo, Catherine Leroux, Thomas M. Hazard +4
We introduce a circuit-QED architecture combining fixed-frequency qubits and microwave-driven couplers. In the appropriate frame, the drive parameters appear as tunable knobs enabl…
Superconducting-semiconducting voltage-tunable qubits in the third dimension
Thomas M. Hazard, Andrew J. Kerman, Kyle Serniak +1
We propose superconducting-semiconducting (super-semi) qubit and coupler designs based on high-quality, compact through-silicon vias (TSVs). An interposer "probe" wafer containing…
Experimental realization of an intrinsically error-protected superconducting qubit
Andras Gyenis, Pranav S. Mundada, Agustin Di Paolo +6
Encoding a qubit in logical quantum states with wavefunctions characterized by disjoint support and robust energies can offer simultaneous protection against relaxation and pure de…
Suppression of Qubit Crosstalk in a Tunable Coupling Superconducting Circuit
Pranav S. Mundada, Gengyan Zhang, Thomas Hazard +1
Parasitic crosstalk in superconducting quantum devices is a leading limitation for quantum gates. We demonstrate the suppression of static ZZ crosstalk in a two-qubit, two-coupler…
Nanowire Superinductance Fluxonium Qubit
T. M. Hazard, András Gyenis, A. Di Paolo +4
We characterize a fluxonium qubit consisting of a Josephson junction inductively shunted with a NbTiN nanowire superinductance. We explain the measured energy spectrum by means of…