activity
20232026
most citedFast superconducting qubit control with sub-harmonic drives

3 citations · 3 across the 4 of their papers we have counts for

collaborators

5 papers

quant-ph2026

Unified scaling of transmon sub-resonant parametric drive strength limits

Jacob Repicky, Girish Kumbhar, Mingkang Xia +6

Achieving fast gates and high-fidelity readout in superconducting quantum circuits often benefits from the use of large amplitude microwave drives. As the strength increases, unwan…

cond-mat.mes-hall2026

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…

cond-mat.mes-hall2025

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…

quant-ph2025

The waves-in-space Purcell effect for superconducting qubits

Param Patel, Mingkang Xia, Chao Zhou +5

Quantum information processing, especially with quantum error correction, requires both long-lived qubits and fast, quantum non-demolition readout. In superconducting circuits this…

quant-ph2023★ 3 cited

Fast superconducting qubit control with sub-harmonic drives

Mingkang Xia, Chao Zhou, Chenxu Liu +8

Increasing the fidelity of single-qubit gates requires a combination of faster pulses and increased qubit coherence. However, with resonant qubit drive via a capacitively coupled p…