841 citations · 3.8k across the 49 of their papers we have counts for
15 papers · 1 filter
Correlating decoherence in transmon qubits: Low frequency noise by single fluctuators
Steffen Schlör, Jürgen Lisenfeld, Clemens Müller +5
We report on long-term measurements of a highly coherent, non-tunable superconducting transmon qubit, revealing low-frequency burst noise in coherence times and qubit transition fr…
Enhanced Superconducting Transition Temperature in Electroplated Rhenium
David P. Pappas, Donald E. David, Russell E. Lake +13
We show that electroplated Re films in multilayers with noble metals such as Cu, Au, and Pd have an enhanced superconducting critical temperature relative to previous methods of pr…
Overlap junctions for high coherence superconducting qubits
X. Wu, J. L. Long, H. S. Ku +3
Fabrication of sub-micron Josephson junctions is demonstrated using standard processing techniques for high-coherence, superconducting qubits. These junctions are made in two separ…
Origin and Suppression of Magnetic Flux Noise
P. Kumar, S. Sendelbach, M. A. Beck +7
Magnetic flux noise is a dominant source of dephasing and energy relaxation in superconducting qubits. The noise power spectral density varies with frequency as with $α\sim…
Long-lived, radiation-suppressed superconducting quantum bit in a planar geometry
Martin Sandberg, Michael R. Vissers, Tom Ohki +4
We present a superconducting qubit design that is fabricated in a 2D geometry over a superconducting ground plane to enhance the lifetime. The qubit is coupled to a microstrip reso…
Proximity-Coupled Ti/TiN Multilayers for use in Kinetic Inductance Detectors
Michael R. Vissers, Jiansong Gao, Martin Sandberg +4
We apply the superconducting proximity effect in TiN/Ti multi-layer films to tune the critical temperature, Tc, to within 10 mK with high uniformity (less than 15 mK spread) across…