38 citations · 135 across the 7 of their papers we have counts for
7 papers
Kerr nonlinearity and parametric amplification with an Al-InAs superconductor-semiconductor Josephson junction
Z. Hao, T. Shaw, M. Hatefipour +5
Nearly quantum limited Josephson parametric amplifiers (JPAs) are essential components in superconducting quantum circuits. However, higher order nonlinearities of the Josephson co…
Andreev reflection of quantum Hall states through a quantum point contact
Mehdi Hatefipour, Joseph J. Cuozzo, Ido Levy +4
We investigate the interplay between the quantum Hall (QH) effect and superconductivity in InAs surface quantum well (SQW)/NbTiN heterostructures using a quantum point contact (QPC…
Quasiparticle dynamics in epitaxial Al-InAs planar Josephson junctions
Bassel Heiba Elfeky, William M. Strickland, Jaewoo Lee +7
Quasiparticle (QP) effects play a significant role in the coherence and fidelity of superconducting quantum circuits. The Andreev bound states of high transparency Josephson juncti…
Evolution of -periodic Supercurrent in the Presence of In-plane Magnetic Field
Bassel Heiba Elfeky, Joseph J. Cuozzo, Neda Lotfizadeh +5
In the presence of a 4-periodic contribution to the current phase relation, for example in topological Josephson junctions, odd Shapiro steps are expected to be missing. While m…
Superconducting resonators with voltage-controlled frequency and nonlinearity
William M. Strickland, Bassel Heiba Elfeky, Joseph O'Connell Yuan +6
Voltage-tunable superconductor-semiconductor devices offer a unique platform to realize dynamic tunability in superconducting quantum circuits. By galvanically connecting a gated I…
Controlling Fermi level pinning in near-surface InAs quantum wells
William M. Strickland, Mehdi Hatefipour, Dylan Langone +2
Hybrid superconductor-semiconductor heterostructures are a promising platform for quantum devices based on mesoscopic and topological superconductivity. In these structures, a semi…
Gate-tunable, superconductor-semiconductor parametric amplifier
D. Phan, P. Falthansl-Scheinecker, U. Mishra +4
We have built a parametric amplifier with a Josephson field effect transistor (JoFET) as the active element. The device's resonant frequency is field-effect tunable over a range of…