Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours

F Hassani, M Peruzzo, LN Kapoor, A Trioni… - Nature …, 2023 - nature.com
Currently available quantum processors are dominated by noise, which severely limits their
applicability and motivates the search for new physical qubit encodings. In this work, we …

Quantum computing hardware for HEP algorithms and sensing

MS Alam, S Belomestnykh, N Bornman… - arxiv preprint arxiv …, 2022 - arxiv.org
Quantum information science harnesses the principles of quantum mechanics to realize
computational algorithms with complexities vastly intractable by current computer platforms …

The information content of jet quenching and machine learning assisted observable design

YS Lai, J Mulligan, M Płoskoń, F Ringer - Journal of High Energy Physics, 2022 - Springer
A bstract Jets produced in high-energy heavy-ion collisions are modified compared to those
in proton-proton collisions due to their interaction with the deconfined, strongly-coupled …

Effects of laser-annealing on fixed-frequency superconducting qubits

H Kim, C Jünger, A Morvan, ES Barnard… - Applied Physics …, 2022 - pubs.aip.org
As superconducting quantum processors increase in complexity, techniques to overcome
constraints on frequency crowding are needed. The recently developed method of laser …

Flux-pulse-assisted readout of a fluxonium qubit

TV Stefanski, CK Andersen - Physical Review Applied, 2024 - APS
Much attention has focused on the transmon architecture for large-scale superconducting
quantum devices; however, the fluxonium qubit has emerged as a possible successor. With …

Demonstration of the two-fluxonium cross-resonance gate

E Dogan, D Rosenstock, LL Guevel, H **ong… - arxiv preprint arxiv …, 2022 - arxiv.org
The superconducting fluxonium qubit has a great potential for high-fidelity quantum gates
with its long coherence times and strong anharmonicity at the half flux quantum sweet spot …

High-Fidelity Two-Qubit Gates between Fluxonium Qubits with a Resonator Coupler

EL Rosenfeld, CT Hann, DI Schuster, MH Matheny… - PRX Quantum, 2024 - APS
We take a bottom-up first-principles approach to designing a two-qubit gate between
fluxonium qubits for minimal error, speed, and control simplicity. Our proposed architecture …

Fluxonium qubits in a flip-chip package

A Somoroff, P Truitt, A Weis, J Bernhardt… - Physical Review …, 2024 - APS
The strong anharmonicity and high coherence times inherent to fluxonium superconducting
circuits are beneficial for quantum information processing. In addition to requiring high …

A superconducting qubit with noise-insensitive plasmon levels and decay-protected fluxon states

F Hassani, M Peruzzo, LN Kapoor, A Trioni… - arxiv preprint arxiv …, 2022 - arxiv.org
The inductively shunted transmon (IST) is a superconducting qubit with exponentially
suppressed fluxon transitions and a plasmon spectrum approximating that of the transmon. It …

Control and Coherence of Next-Generation Superconducting Qubits

DK Weiss - 2022 - search.proquest.com
Superconducting-circuit based platforms are strong contenders in the race to build a
quantum computer. While the transmon has had extraordinary success as the leading …