321 citations · 2k across the 40 of their papers we have counts for
41 papers
Engineering electron wavefunctions in asymmetrically confined quasi one-dimensional structures
S. Kumar, M. Pepper, H. Montagu +4
We present results on electron transport in quasi-one dimensional (1D) quantum wires in GaAs/AlGaAs heterostructures obtained using an asymmetric confinement potential. The variati…
Radio-frequency reflectometry of a quantum dot using an ultra-low-noise SQUID amplifier
F. J. Schupp, F. Vigneau, Y. Wen +12
Fault-tolerant spin-based quantum computers will require fast and accurate qubit readout. This can be achieved using radio-frequency reflectometry given sufficient sensitivity to t…
Magnetoresistance in an electronic cavity coupled to one-dimensional systems
Chengyu Yan, Sanjeev Kumar, Patrick See +5
In this work, we performed magnetoresistance measurement in a hybrid system consisting of an arc-shaped quantum point contact (QPC) and a flat, rectangular QPC, both of which toget…
Direct observation of exchange-driven spin interactions in one-dimensional system
Chengyu Yan, Sanjeev Kumar, Kalarikad Thomas +6
We present experimental results of transverse electron focusing measurements performed on an n-type GaAs based mesoscopic device consisting of one-dimensional (1D) quantum wires as…
Ultrafast Voltage Sampling using Single-Electron Wavepackets
N. Johnson, J. D. Fletcher, D. A. Humphreys +8
We demonstrate an ultrafast voltage sampling technique using a stream of electron wavepackets. Electrons are emitted from a single-electron pump and travel through electron wavegui…
The effect of split gate size on the electrostatic potential and 0.7 anomaly within one-dimensional quantum wires on a modulation doped GaAs/AlGaAs heterostructure
L. W. Smith, H. Al-Taie, A. A. J. Lesage +9
We study 95 split gates of different size on a single chip using a multiplexing technique. Each split gate defines a one-dimensional channel on a modulation-doped GaAs/AlGaAs heter…