47 citations · 131 across the 9 of their papers we have counts for
9 papers
On-demand driven dissipation for cavity reset and cooling
Vivek Maurya, Haimeng Zhang, Daria Kowsari +9
We present a superconducting circuit device that provides active, on-demand, tunable dissipation on a target mode of the electromagnetic field. Our device is based on a tunable "di…
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…
Electron-phonon interactions in the Andreev Bound States of aluminum nanobridge Josephson junctions
James T. Farmer, Azarin Zarassi, Sadman Shanto +2
We report continuous measurements of quasiparticles trapping and clearing from Andreev Bound States in aluminum nanobridge Josephson junctions integrated into a superconducting-qub…
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…
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…
Continuous Real-Time Detection of Quasiparticle Trapping in Aluminum Nanobridge Josephson Junctions
James T. Farmer, Azarin Zarassi, Darian M. Hartsell +3
Nonequilibrium quasiparticles are ubiquitous in superconducting electronics. These quasiparticles can trap in the internal Andreev bound states of a phase-biased Josephson junction…
Parity-preserving and magnetic field resilient superconductivity in indium antimonide nanowires with tin shells
M. Pendharkar, B. Zhang, H. Wu +14
We study bottom-up grown semiconductor indium antimonide nanowires that are coated with shells of tin. The shells are uniform in thickness. The interface between Sn and InSb is abr…
Magnetic Field Evolution of Spin Blockade in Ge/Si Nanowire Double Quantum Dots
Azarin Zarassi, Zhaoen Su, Jeroen Danon +6
We perform transport measurements on double quantum dots defined in Ge/Si core/shell nanowires and focus on Pauli spin blockade in the regime where tens of holes occupy each dot. W…
High critical magnetic field superconducting contacts to Ge/Si core/shell nanowires
Zhaoen Su, Azarin Zarassi, Binh-Minh Nguyen +3
Contacts between high critical field superconductors and semiconductor nanowires are important in the context of topological quantum circuits in which superconductivity must be sus…