345 citations · 2.4k across the 41 of their papers we have counts for
41 papers
Coupling-energy driven pumping through quantum dots: Role of coherences
Lukas Litzba, Gernot Schaller, Jürgen König +1
We study the impact of off-resonant tunneling and coherences on the electron pumping through quantum dots. Thereby, we focus on two electron-pump setups where lowest-order tunnelin…
Non-Hermitian Exceptional Topology on a Klein Bottle Photonic Circuit
Ze-Sheng Xu, J. Lukas K. König, Andrea Cataldo +8
Non-Hermitian physics has unlocked a wealth of unconventional wave phenomena beyond the reach of Hermitian systems, with exceptional points (EPs) driving enhanced sensitivity, nonr…
Statistical analysis of electron-induced switching of a spin-crossover complex
Jonas Fußangel, Björn Sothmann, Sven Johannsen +5
Spin-crossover complexes exhibit two stable configurations with distinct spin states. The investigation of these molecules using low-temperature scanning tunneling microscopy has o…
Exceptional topology on nonorientable manifolds
J. Lukas K. König, Kang Yang, André Grossi Fonseca +3
We classify gapped phases and characteristic nodal points of non-Hermitian band structures on two-dimensional nonorientable parameter spaces. Such spaces arise in a wide range of p…
Biorthogonal Renormalization
Elisabet Edvardsson, J Lukas K König, Marcus Stålhammar
The biorthogonal formalism extends conventional quantum mechanics to the non-Hermitian realm. It has, however, been pointed out that the biorthogonal inner product changes with the…
Environment-induced decay dynamics of anti-ferromagnetic order in Mott-Hubbard systems
Gernot Schaller, Friedemann Queisser, Nikodem Szpak +2
We study the dissipative Fermi-Hubbard model in the limit of weak tunneling and strong repulsive interactions, where each lattice site is tunnel-coupled to a Markovian fermionic ba…