211 citations · 475 across the 5 of their papers we have counts for
5 papers
Dispersive Gate Sensing the Quantum Capacitance of a Point Contact
M. C. Jarratt, A. Jouan, A. C. Mahoney +5
The technique of dispersive gate sensing (DGS) uses a single electrode to readout a qubit by detecting the change in quantum capacitance due to single electron tunnelling. Here, we…
Zero-field Edge Magnetoplasmons in a Magnetic Topological Insulator
A. C. Mahoney, J. I. Colless, L. Peeters +7
Incorporating ferromagnetic dopants, such as chromium or vanadium, into thin films of the three-dimensional (3D) topological insulator (TI) (Bi,Sb)2Te3 has recently led to the real…
On-Chip Microwave Quantum Hall Circulator
A. C. Mahoney, J. I. Colless, S. J. Pauka +6
Circulators are non-reciprocal circuit elements integral to technologies including radar systems, microwave communication transceivers, and the readout of quantum information devic…
Frequency Multiplexing for Readout of Spin Qubits
J. M. Hornibrook, J. I. Colless, A. C. Mahoney +5
We demonstrate a low loss, chip-level frequency multiplexing scheme for readout of scaled-up spin qubit devices. By integrating separate bias tees and resonator circuits on-chip fo…
Dispersive Readout of a Few-Electron Double Quantum Dot with Fast rf Gate-Sensors
J. I. Colless, A. C. Mahoney, J. M. Hornibrook +4
We report the dispersive charge-state readout of a double quantum dot in the few-electron regime using the in situ gate electrodes as sensitive detectors. We benchmark this gate-se…