133 citations · 204 across the 7 of their papers we have counts for
7 papers
Using a quantum dot as a high-frequency shot noise detector
E. Onac, F. Balestro, L. H. Willems van Beveren +3
We present the experimental realization of a Quantum Dot (QD) operating as a high-frequency noise detector. Current fluctuations produced in a nearby Quantum Point Contact (QPC) io…
Superconducting qubits II: Decoherence
F. K. Wilhelm, M. J. Storcz, U. Hartmann +1
This is an introduction to elementary decoherence theory as it is typically applied to superconducting qubits.
Intrinsic phonon decoherence and quantum gates in coupled lateral quantum dot charge qubits
Markus J. Storcz, Udo Hartmann, Sigmund Kohler +1
Recent experiments by Hayashi et al. [Phys. Rev. Lett. 91, 226804 (2003)] demonstrate coherent oscillations of a charge quantum bit (qubit) in laterally defined quantum dots. We st…
Strong coupling of a qubit to shot noise
Udo Hartmann, Frank K. Wilhelm
We perform a nonperturbative analysis of a charge qubit in a double quantum dot structure coupled to its detector. We show that strong detector-dot interaction tends to slow down a…
Nonequilibrium stabilization of charge states in double quantum dots
Udo Hartmann, Frank K. Wilhelm
We analyze the decoherence of charge states in double quantum dots due to cotunneling. The system is treated using the Bloch-Redfield generalized master equation for the Schrieffer…
Nonlinear cotunneling through an artificial molecule
Udo Hartmann, Frank K. Wilhelm
We study electron transport through a system of two lateral quantum dots coupled in series. We consider the case of weak coupling to the leads and a bias point in the Coulomb block…