140 citations · 1.1k across the 59 of their papers we have counts for
4 papers · 2 filters
Quantum waveguides with magnetic fields
Stefan Haag, Jonas Lampart, Stefan Teufel
We study generalised quantum waveguides in the presence of moderate and strong external magnetic fields. Applying recent results on the adiabatic limit of the connection Laplacian…
Non-equilibrium almost-stationary states and linear response for gapped quantum systems
Stefan Teufel
We prove the validity of linear response theory at zero temperature for perturbations of gapped Hamiltonians describing interacting fermions on a lattice. As an essential innovatio…
Adiabatic currents for interacting electrons on a lattice
Domenico Monaco, Stefan Teufel
We prove an adiabatic theorem for general densities of observables that are sums of local terms in finite systems of interacting fermions, without periodicity assumptions on the Ha…
Particle Creation at a Point Source by Means of Interior-Boundary Conditions
Julian Schmidt, Jonas Lampart, Stefan Teufel +1
We consider a way of defining quantum Hamiltonians involving particle creation and annihilation based on an interior-boundary condition (IBC) on the wave function, where the wave f…