700 citations · 4.8k across the 126 of their papers we have counts for
8 papers · 2 filters
'Metal'-like transport in high-resistance, high aspect ratio two-dimensional electron gases
Dirk Backes, Richard Hall, Michael Pepper +3
We investigate the striking absence of strong localisation observed in mesoscopic two-dimensional electron gases (2DEGs) (Baenninger et al 2008 Phys. Rev. Lett. 100 1016805, Backes…
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…
Energy-Tunable Quantum Dot with Minimal Fine Structure Created by Using Simultaneous Electric and Magnetic Fields
M. A. Pooley, A. J. Bennett, R. M. Stevenson +3
The neutral biexciton cascade of single quantum dots is a promising source of entangled photon pairs. The character of the entangled state is determined by the energy difference be…
Ultrafast electrical control of a resonantly driven single photon source
Y. Cao, A. J. Bennett, D. J. P. Ellis +3
We demonstrate generation of a pulsed stream of electrically triggered single photons in resonance fluorescence, by applying high frequency electrical pulses to a single quantum do…
Single-photon superradiance from a quantum dot
P. Tighineanu, R. S. Daveau, T. B. Lehmann +4
We report on the observation of single-photon superradiance from an exciton in a semiconductor quantum dot. The confinement by the quantum dot is strong enough for it to mimic a tw…
Observation of geometry dependent conductivity in two-dimensional electron systems
Dirk Backes, Richard Hall, Michael Pepper +3
We report electrical conductivity measurements on a range of two-dimensional electron gases (2DEGs) of varying linear extent. Intriguingly, at low temperatures () and low ca…
Determining energy relaxation length scales in two-dimensional electron gases
Jordan Billiald, Dirk Backes, Jürgen König +3
We present measurements of the energy relaxation length scale in two-dimensional electron gases (2DEGs). A temperature gradient is established in the 2DEG by means of a heat…
Measurement and control of electron wave packets from a single-electron source
J. Waldie, P. See, V. Kashcheyevs +6
We report an experimental technique to measure and manipulate the arrival-time and energy distributions of electrons emitted from a semiconductor electron pump, operated as both a…