38 citations · 96 across the 15 of their papers we have counts for
8 papers · 1 filter
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…
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…
Zero-bias conductance peaks at zero applied magnetic field due to stray fields from integrated micromagnets in hybrid nanowire quantum dots
Y. Jiang, M. Gupta, C. Riggert +7
Many recipes for realizing topological superconductivity rely on broken time-reversal symmetry, which is often attained by applying a substantial external magnetic field. Alternati…
Sn/InAs Josephson junctions on selective area grown nanowires with in-situ shadowed superconductor evaporation
Aranya Goswami, Sanchayeta R. Mudi, Connor Dempsey +5
Superconductor-semiconductor nanowire hybrid structures are useful in fabricating devices for quantum information processing. While selective area growth (SAG) offers the flexibili…
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…
Selective Control of Conductance Modes in Multi-terminal Josephson Junctions
Gino V. Graziano, Mohit Gupta, Mihir Pendharkar +4
The Andreev bound state spectra of multi-terminal Josephson junctions form an artificial band structure, which is predicted to host tunable topological phases under certain conditi…
Supercurrent parity-meter in a nanowire Cooper-pair transistor
Ji-Yin Wang, Constantin Schrade, Vukan Levajac +13
We study a Cooper-pair transistor realized by two Josephson weak links that enclose a superconducting island in an InSb-Al hybrid nanowire. When the nanowire is subject to a magnet…
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…