33 citations · 69 across the 9 of their papers we have counts for
9 papers
Tunable anharmonicity in Sn-InAs nanowire transmons beyond the short junction limit
Amrita Purkayastha, Amritesh Sharma, Param J. Patel +11
The anharmonicity of a transmon qubit, defined as the difference in energy level spacing, is a key design parameter. In transmons built from hybrid superconductor-semiconductor Jos…
Gate-tunable Josephson parametric amplifiers based on semiconductor nanowires
Raphael Rousset-Zenou, Nicolas Aparicio, Simon Messelot +5
Superconductor-semiconductor hybrid materials have been extensively used for experiments on electrically tunable quantum devices. Notably, Josephson junctions utilizing nanowire we…
Transmon qubit using Sn as a junction superconductor
Amrita Purkayastha, Amritesh Sharma, Param J. Patel +11
Superconductor qubits typically use aluminum-aluminum oxide tunnel junctions to provide the non-linear inductance. Junctions with semiconductor barriers make it possible to vary th…
Sn-InAs nanowire shadow-defined Josephson junctions
Amritesh Sharma, An-Hsi Chen, Connor P. Dempsey +6
Interest in hybrid electronic devices for quantum science is driving the research into superconductor-semiconductor materials combinations. Here we study InAs nanowires coated with…
"Smoking gun" signatures of topological milestones in trivial materials by measurement fine-tuning and data postselection
S. M. Frolov, P. Zhang, B. Zhang +9
Exploring the topology of electronic bands is a way to realize new states of matter with possible implications for information technology. Because bands cannot always be observed d…
Planar Josephson Junctions Templated by Nanowire Shadowing
P. Zhang, A. Zarassi, M. Pendharkar +16
More and more materials, with a growing variety of properties, are built into electronic devices. This is motivated both by increased device performance and by the studies of mater…
Missing odd-order Shapiro steps do not uniquely indicate fractional Josephson effect
P. Zhang, S. Mudi, M. Pendharkar +10
Topological superconductivity is expected to spur Majorana zero modes -- exotic states that are also considered a quantum technology asset. Fractional Josephson effect is their man…
Large Second-Order Josephson Effect in Planar Superconductor-Semiconductor Junctions
P. Zhang, A. Zarassi, L. Jarjat +12
We investigate the current-phase relations of Al/InAs-quantum well planar Josephson junctions fabricated using nanowire shadowing technique. Based on several experiments, we conclu…
Mirage Andreev spectra generated by mesoscopic leads in nanowire quantum dots
Z. Su, A. Zarassi, J. -F. Hsu +15
We study transport mediated by Andreev bound states formed in InSb nanowire quantum dots. Two kinds of superconducting source and drain contacts are used: epitaxial Al/InSb devices…