46 citations · 73 across the 3 of their papers we have counts for
8 papers
Coupling symmetry of quantum dot states
M. C. Rogge, B. Harke, C. Fricke +4
With non-invasive methods, we investigate ground and excited states of a lateral quantum dot. Charge detection via a quantum point contact is used to map the dot dynamics in a regi…
Non-invasive detection of charge-rearrangement in a quantum dot in high magnetic fields
C. Fricke, M. C. Rogge, B. Harke +4
We demonstrate electron redistribution caused by magnetic field on a single quantum dot measured by means of a quantum point contact as non-invasive detector. Our device which is f…
Observation of inter-edge magnetoplasmon mode in a degenerate two-dimensional electron gas
G. Sukhodub, F. Hohls, R. J. Haug
We study the propagation of edge magnetoplasmons by time-resolved current measurements in a sample which allows for selective detection of edge states in the quantum Hall regime. W…
Shot noise in tunneling through a single quantum dot
A. Nauen, F. Hohls, N. Maire +2
We investigate the noise properties of a zero-dimensional InAs quantum dot (QD) embedded in a GaAs-AlAs-GaAs tunneling structure. We observe an approximately linear dependence of t…
Shot noise in resonant tunneling through a zero-dimensional state with a complex energy spectrum
A. Nauen, F. Hohls, J. Konemann +1
We investigate the noise properties of a GaAs/AlGaAs resonant tunneling structure at bias voltages where the current characteristic is determined by single electron tunneling. We d…
Direct Measurement of the g-Factor of Composite Fermions
F. Schulze-Wischeler, E. Mariani, F. Hohls +1
The activation gap of the fractional quantum Hall states at constant fillings and 2/5 has been measured as a function of the perpendicular magnetic field . A linear…