31 citations · 49 across the 5 of their papers we have counts for
6 papers · 1 filter
Spin-dephasing anisotropy for electrons in a diffusive quasi-1D GaAs wire
J. Liu, T. Last, E. J. Koop +3
We present a numerical study of dephasing of electron spin ensembles in a diffusive quasi-one-dimensional GaAs wire due to the D'yakonov-Perel' spin-dephasing mechanism. For widths…
Confinement-enhanced spin relaxation for electron ensembles in large quantum dots
E. J. Koop, B. J. van Wees, C. H. van der Wal
We present a numerical study of spin relaxation in a semiclassical electron ensemble in a large ballistic quantum dot. The dot is defined in a GaAs/AlGaAs heterojunction system wit…
Towards quantum optics and entanglement with electron spin ensembles in semiconductors
C. H. van der Wal, M. Sladkov
We discuss a technique and a material system that enable the controlled realization of quantum entanglement between spin-wave modes of electron ensembles in two spatially separated…
The influence of device geometry on many-body effects in quantum point contacts: Signatures of the 0.7 anomaly, exchange and Kondo
E. J. Koop, A. I. Lerescu, J. Liu +4
The conductance of a quantum point contact (QPC) shows several features that result from many-body electron interactions. The spin degeneracy in zero magnetic field appears to be s…
Non-local detection of resistance fluctuations of an open quantum dot
A. I. Lerescu, E. J. Koop, C. H. van der Wal +2
We investigate quantum fluctuations in the non-local resistance of an open quantum dot which is connected to four reservoirs via quantum point contacts. In this four-terminal quant…
Decoherence of the Superconducting Persistent Current Qubit
Lin Tian, L. S. Levitov, Caspar H. van der Wal +5
Decoherence of a solid state based qubit can be caused by coupling to microscopic degrees of freedom in the solid. We lay out a simple theory and use it to estimate decoherence for…