activity
20022023
most citedDecoherence in Josephson Qubits from Dielectric Loss

841 citations · 1.4k across the 22 of their papers we have counts for

collaborators

22 papers

cond-mat.supr-con2023

Boosting fluxons for ballistic-logic power using an Aharonov-Casher ring

Waltraut Wustmann, Kevin Daniel Osborn

Superconducting logic is fast and energy-efficient relative to CMOS, but also fundamental studies are needed to scale up circuits for greater utility. Recently, ballistic shift reg…

physics.app-ph2023★ 3 cited

Quantum defects from single surface exhibit strong mutual interactions

Chih-Chiao Hung, Tim Kohler, Kevin D. Osborn

Two-level system (TLS) defects constitute a major decoherence source of quantum information science, but they are generally less understood at material interfaces than in deposited…

cond-mat.supr-con2022

Dual-Resonator Kinetic-Inductance Detector for Distinction between Signal and 1/f Frequency Noise

N. Foroozani, B. Sarabi, S. H. Moseley +4

Astronomical Kinetic Inductance Detectors (KIDs), similar to quantum information devices, experience performance limiting noise from materials. In particular, 1/f (frequency) noise…

cond-mat.supr-con2022★ 7 cited

Asynchronous Reversible Computing Unveiled Using Ballistic Shift Registers

Kevin D. Osborn, Waltraut Wustmann

Reversible logic can provide lower switching energy costs relative to all irreversible logic, including those developed by industry in semiconductor circuits, however, more researc…

quant-ph2021★ 8 cited

Experimentally revealing anomalously large dipoles in a quantum-circuit dielectric

Liuqi Yu, Shlomi Matityahu, Yaniv J. Rosen +5

Quantum two-level systems (TLSs) intrinsic to glasses induce decoherence in many modern quantum devices, such as superconducting qubits. Although the low-temperature physics of the…

quant-ph2021★ 22 cited

Probing hundreds of individual quantum defects in polycrystalline and amorphous alumina

Chih-Chiao Hung, Liuqi Yu, Neda Foroozani +3

Quantum two-level systems (TLSs) are present in the materials of qubits and are considered defects because they limit qubit coherence. For superconducting qubits, the quintessentia…