88 citations · 433 across the 12 of their papers we have counts for
11 papers · 1 filter
Row coupling in an interacting quasi-one-dimensional quantum wire investigated using transport measurements
L. W. Smith, W. K. Hew, K. J. Thomas +5
We study electron transport in quasi-one-dimensional wires at relatively weak electrostatic confinements, where the Coulomb interaction distorts the ground state, leading to the bi…
Microwave-Driven Transitions in Two Coupled Semiconductor Charge Qubits
K. D. Petersson, C. G. Smith, D. Anderson +3
We have studied interactions between two capacitively coupled GaAs/AlGaAs few-electron double quantum dots. Each double quantum dot defines a tunable two-level system, or qubit, in…
Incipient Formation of an Electron Lattice in a Weakly-Confined Quantum Wire
W. K. Hew, K. J. Thomas, M. Pepper +4
We study the low-temperature transport properties of 1D quantum wires as the confinement strength V_conf and the carrier density n_1D are varied using a combination of split gates…
Enhanced current quantization in high frequency electron pumps in a perpendicular magnetic field
S. J. Wright, M. D. Blumenthal, Godfrey Gumbs +8
We present experimental results of high frequency quantized charge pumping through a quantum dot formed by the electric field arising from applied voltages in a GaAs/AlGaAs system…
Spin-Incoherent Transport in Quantum Wires
W. K. Hew, K. J. Thomas, M. Pepper +4
When a quantum wire is weakly confined, a conductance plateau appears at e^2/h with decreasing carrier density in zero magnetic field accompanied by a gradual suppression of the 2e…
Pauli spin blockade in carbon nanotube double quantum dots
M. R. Buitelaar, J. Fransson, A. L. Cantone +8
We report Pauli spin blockade in an impurity defined carbon nanotube double quantum dot. We observe a pronounced current suppression for negative source-drain bias voltages which i…