307 citations · 536 across the 7 of their papers we have counts for
7 papers
Charge transfer through molecular junctions within Redfield theory: subtleties and pitfalls
Lars Kecke, Joachim Ankerhold
Charge transfer through nanoscale junctions connecting metallic leads with quantum dots or single molecules is often described within an open system formulation in terms of Redfiel…
Voltage induced conformational changes and current control in charge transfer through molecules
Lars Kecke, Joachim Ankerhold
Transport through molecular contacts with a sluggish intramolecular vibrational mode strongly coupled to excess charges is studied far from equilibrium. A Born-Oppenheimer approxim…
Vector chiral and multipolar orders in the spin-1/2 frustrated ferromagnetic chain in magnetic field
Toshiya Hikihara, Lars Kecke, Tsutomu Momoi +1
We study the one-dimensional spin-1/2 Heisenberg chain with competing ferromagnetic nearest-neighbor J_1 and antiferromagnetic next-nearest-neighbor J_2 exchange couplings in the p…
Multi-magnon bound states in the frustrated ferromagnetic 1D chain
Lars Kecke, Tsutomu Momoi, Akira Furusaki
We study a one-dimensional Heisenberg chain with competing ferromagnetic nearest-neighbor and antiferromagnetic next-nearest neighbor interactions in magnetic field. Starting from…
Charge and spin dynamics of interacting Fermions in a one dimensional harmonic trap
Lars Kecke, Hermann Grabert, Wolfgang Häusler
We study an atomic Fermi gas interacting through repulsive contact forces in a one dimensional harmonic trap. Bethe-Ansatz solutions lead to an inhomogeneous Tomonaga-Luttinger mod…
Ladder approximation to spin velocities in quantum wires
Lars Kecke, Wolfgang Häusler
The spin sector of charge-spin separated single mode quantum wires is studied, accounting for realistic microscopic electron-electron interactions. We utilize the ladder approximat…