73 citations · 275 across the 20 of their papers we have counts for
10 papers · 1 filter
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…
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…