73 citations · 275 across the 20 of their papers we have counts for
20 papers
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…
Multiplet Supercurrents in a Josephson Circuit
Ethan G. Arnault, John Chiles, Trevyn F. Q. Larson +6
Multiterminal Josephson junctions are a promising platform to host synthetic topological phases of matter and Floquet states. However, the energy scales governing topological prote…
Thermal properties of the superconductor-quantum Hall interfaces
Lingfei Zhao, Trevyn F. Q. Larson, Zubair Iftikhar +5
An important route of engineering topological states and excitations is to combine superconductors (SC) with the quantum Hall (QH) effect, and over the past decade, significant pro…
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…
Non-local transport measurements in hybrid quantum Hall - superconducting devices
Lingfei Zhao, Ethan G. Arnault, Trevyn F. Q. Larson +4
There has been a growing interest in hybrid quantum Hall (QH) superconductor devices, driven by the prospect to realize exotic ground states and excitations with non-abelian exchan…
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…
Noise-induced stabilization of dynamical states with broken time-reversal symmetry
Trevyn F. Q. Larson, Lingfei Zhao, Ethan G. Arnault +7
Under a high frequency drive, Josephson junctions demonstrate "Shapiro steps" of quantized voltage. These are dynamically stabilized states, in which the phase across the junction…
Non-Reciprocal Supercurrents in a Field-Free Graphene Josephson Triode
John Chiles, Ethan G. Arnault, Chun-Chia Chen +6
Superconducting diodes are proposed non-reciprocal circuit elements that should exhibit non-dissipative transport in one direction while being resistive in the opposite direction.…
Loss and decoherence at the quantum Hall - superconductor interface
Lingfei Zhao, Zubair Iftikhar, Trevyn F. Q. Larson +5
We perform a systematic study of Andreev conversion at the interface between a superconductor and graphene in the quantum Hall (QH) regime. We find that the probability of Andreev…
Graphene-based quantum Hall interferometer with self-aligned side gates
Lingfei Zhao, Ethan G. Arnault, Trevyn F. Q. Larson +7
The vanishing band gap of graphene has long presented challenges for making high-quality quantum point contacts (QPCs) -- the partially transparent p-n interfaces introduced by con…
Dynamical Stabilization of Multiplet Supercurrents in Multi-terminal Josephson Junctions
Ethan G. Arnault, Sara Idris, Aeron McConnell +6
The dynamical properties of multi-terminal Josephson junctions have recently attracted interest, driven by the promise of new insights into synthetic topological phases of matter a…
One-Dimensional Edge Contact to Encapsulated MoS2 with a Superconductor
A. Seredinski, E. G. Arnault, V. Z. Costa +7
Establishing ohmic contact to van der Waals semiconductors such as MoS2 is crucial to unlocking their full potential in next-generation electronic devices. Encapsulation of few lay…
The Multi-terminal Inverse AC Josephson Effect
Ethan G. Arnault, Trevyn Larson, Andrew Seredinski +8
When a Josephson junction is exposed to microwave radiation, it undergoes the inverse AC Josephson effect - the phase of the junction locks to the drive frequency. As a result, the…
Zero-bias crossings and peculiar Shapiro maps in graphene Josephson junctions
T. F. Q. Larson, L. Zhao, E. G. Arnault +7
The AC Josephson effect manifests itself in the form of "Shapiro steps" of quantized voltage in Josephson junctions subject to RF radiation. This effect presents an early example o…
Interference of chiral Andreev edge states
Lingfei Zhao, Ethan G. Arnault, Alexey Bondarev +9
The search for topological excitations such as Majorana fermions has spurred interest in the boundaries between distinct quantum states. Here, we explore an interface between two p…