The integer quantised conductance of one-dimensional electron systems is a well-
understood effect of quantum confinement. A number of fractionally quantised plateaus are …

A quantum point contact (QPC) is a basic nanometre-scale electronic device: a short and
narrow transport channel between two electron reservoirs. In clean channels, electron …

Quantum point contacts are fundamental building blocks for mesoscopic transport
experiments and play an important role in recent interference and fractional quantum Hall …

Evidence is presented for the finite wave vector crossing of the two lowest one-dimensional
spin-split subbands in quantum point contacts fabricated from two-dimensional hole gases …

We present magnetotransport measurements performed on two-dimensional hole gases
embedded in carbon doped p-type GaAs/AlGaAs heterostructures grown on [001] oriented …

We demonstrate a hole double quantum dot in an undoped GaAs/AlGaAs heterostructure.
The interdot coupling can be tuned over a wide range, from formation of a large single dot to …

Quantum point contacts (QPCs) and quantum dots (QDs), two elementary building blocks of
semiconducting nanodevices, both exhibit famously anomalous conductance features: the …

We investigate integer and fractional quantum Hall states in quantum point contacts (QPCs)
of different geometries, defined in AlGaAs/GaAs heterostructures employing different doping …

It has been argued that the 0.7 anomaly in quantum point contacts (QPCs) is due to an
enhanced density of states at the top of the QPC barrier (the van Hove ridge), which strongly …

We report the observation of Kondo physics in a spin-3 2 hole quantum dot. The dot is
formed close to pinch-off in a hole quantum wire defined in an undoped AlGaAs/GaAs …