73 citations · 275 across the 20 of their papers we have counts for
8 papers · 1 filter
WSi weak link element with a non-sinusoidal current-phase relation
Sarah Garcia Jones, Trevyn F. Q. Larson, Sai Pavan Chitta +7
Nonlinearity is an essential ingredient for encoding quantum states with non-uniform energy spacing, implementing coherent quantum gates, reading out qubits, amplifying, and mixing…
Revisiting the multi-mode rhombus circuit as a biased-noise qubit
Pablo Aramburu Sanchez, Trevyn F. Q. Larson, Anthony P. McFadden +3
In this work, we revisit the idea of using an interferometer of pairs of Josephson junctions as a protected rhombus qubit. Unlike in the original proposal, where the qubit states a…
Millimeter Wave Readout of a Superconducting Qubit
Akash V. Dixit, Zachary L. Parrott, Dennis Chunikhin +3
Millimeter waves are emerging as an enabling technology for connecting and enhancing different quantum platforms such as Rydberg atoms, optomechanics, and superconducting qubits. I…
Localized quasiparticles in a fluxonium with quasi-two-dimensional amorphous kinetic inductors
Trevyn F. Q. Larson, Sarah Garcia Jones, Tamás Kalmár +10
Disordered superconducting materials with high kinetic inductance are an important resource to generate nonlinearity in quantum circuits and create high-impedance environments. In…
Interface-sensitive microwave loss in superconducting tantalum films sputtered on c-plane sapphire
Anthony P. McFadden, Jinsu Oh, Lin Zhou +5
Quantum coherence in superconducting circuits has increased steadily over the last decades as a result of a growing understanding of the various loss mechanisms. Recently, tantalum…
Fabrication and characterization of low-loss Al/Si/Al parallel plate capacitors for superconducting quantum information applications
Anthony McFadden, Aranya Goswami, Tongyu Zhao +7
Increasing the density of superconducting circuits requires compact components, however, superconductor-based capacitors typically perform worse as dimensions are reduced due to lo…
Low-noise cryogenic microwave amplifier characterization with a calibrated noise source
M. Malnou, T. F. Q. Larson, J. D. Teufel +2
Parametric amplifiers have become a workhorse in superconducting quantum computing, however research and development of these devices has been hampered by inconsistent, and sometim…
Symplectic geometry and circuit quantization
Andrew Osborne, Trevyn Larson, Sarah Jones +3
Circuit quantization is an extraordinarily successful theory that describes the behavior of quantum circuits with high precision. The most widely used approach of circuit quantizat…