112 citations · 315 across the 7 of their papers we have counts for
7 papers
Quantum dots investigated with charge detection techniques
T. Ihn, Simon Gustavsson, Urszula Gasser +7
The detection of the quantum dot charge state using a quantum point contact charge detector has opened a new exciting route for the investigation of quantum dot devices in recent y…
Breaking of Phase Symmetry in Non-Equilibrium Aharonov-Bohm Oscillations through a Quantum Dot
Vadim Puller, Yigal Meir, Martin Sigrist +2
Linear response conductance of a two terminal Aharonov-Bohm (AB) interferometer is an even function of magnetic field. This "phase symmetry" is no expected to hold beyond the linea…
Coherent probing of excited quantum dot states in an interferometer
Martin Sigrist, Thomas Ihn, Klaus Ensslin +2
Measurements of elastic and inelastic cotunneling currents are presented on a two-terminal Aharonov--Bohm interferometer with a Coulomb blockaded quantum dot embedded in each arm.…
Single electron charging of impurity sites visualized by scanning gate experiments on a quantum point contact
A. Pioda, S. Kicin, D. Brunner +5
A quantum point contact (QPC) patterned on a two-dimensional electron gas is investigated with a scanning gate setup operated at a temperature of 300 mK. The conductance of the poi…
Fano effect in a ring-dot system with tunable coupling
A. Fuhrer, P. Brusheim, T. Ihn +4
Transport measurements are presented on a quantum ring that is tunnel-coupled to a quantum dot. When the dot is in the Coulomb blockade regime, but strongly coupled to the open rin…
Phase coherence in the inelastic cotunneling regime
M. Sigrist, T. Ihn, K. Ensslin +3
Two quantum dots with tunable mutual tunnel coupling have been embedded in a two-terminal Aharonov-Bohm geometry. Aharonov-Bohm oscillations are investigated in the cotunneling reg…