27 citations · 52 across the 5 of their papers we have counts for
5 papers
Dynamics of the Anderson impurity model: benchmarking a non-adiabatic exchange-correlation potential in time-dependent density functional theory
Niklas Dittmann, Nicole Helbig, Dante M. Kennes
In this comparative study we benchmark a recently developed non-adiabatic exchange-correlation potential within time-dependent density functional theory (TDDFT) (Phys.\ Rev.\ Lett.…
Finite-frequency noise of interacting single-electron emitters: spectroscopy with higher noise harmonics
Niklas Dittmann, Janine Splettstoesser
We derive the symmetrized current-noise spectrum of a quantum dot, which is weakly tunnel-coupled to an electron reservoir and driven by a slow time-dependent gate voltage. This se…
Equilibrium finite-frequency noise of an interacting mesoscopic capacitor studied in time-dependent density functional theory
Niklas Dittmann, Janine Splettstoesser, Nicole Helbig
We calculate the frequency-dependent equilibrium noise of a mesoscopic capacitor in time-dependent density functional theory (TDDFT). The capacitor is modeled as a single-level qua…
Non-Adiabatic Dynamics in Single-Electron Tunneling Devices with Time-Dependent Density Functional Theory
Niklas Dittmann, Janine Splettstoesser, Nicole Helbig
We simulate the dynamics of a single-electron source, modeled as a quantum dot with on-site Coulomb interaction and tunnel coupling to an adjacent lead, in time-dependent density f…
Clocked single-spin source based on a spin-split superconductor
Niklas Dittmann, Janine Splettstoesser, Francesco Giazotto
We propose an accurate clocked single-spin source for ac-spintronic applications. Our device consists of a superconducting island covered by a ferromagnetic insulator layer through…