567 citations · 2.3k across the 51 of their papers we have counts for
9 papers · 1 filter
Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array
Johannes Beierlein, Oleg. A. Egorov, Tristan H. Harder +6
Bloch oscillations are a phenomenon well known from quantum mechanics where electrons in a lattice experience an oscillatory motion in the presence of an electric field gradient. H…
Room temperature topological polariton laser in an organic lattice
Marco Dusel, Simon Betzold, Tristan. H. Harder +7
Interacting bosonic particles in artificial lattices have proven to be a powerful tool for the investigation of exotic phases of matter as well as phenomena resulting from non-triv…
Kagome Flatbands for Coherent Exciton-Polariton Lasing
Tristan H. Harder, Oleg A. Egorov, Constantin Krause +7
Kagome lattices supporting Dirac cone and flatband dispersions are well known as a highly frustrated, two-dimensional lattice system. Particularly the flatbands therein are attract…
Topological defect engineering and PT-symmetry in non-Hermitian electrical circuits
Alexander Stegmaier, Stefan Imhof, Tobias Helbig +14
We employ electric circuit networks to study topological states of matter in non-Hermitian systems enriched by parity-time symmetry and chiral symmetry anti-$\mathca…
Bosonic condensation of exciton-polaritons in an atomically thin crystal
Carlos Anton-Solanas, Maximilian Waldherr, Martin Klaas +9
The emergence of two-dimensional crystals has revolutionized modern solid-state physics. From a fundamental point of view, the enhancement of charge carrier correlations has sparke…
Coherent topological polariton laser
Tristan H. Harder, Meng Sun, Oleg A. Egorov +9
Topological concepts have been applied to a wide range of fields in order to successfully describe the emergence of robust edge modes that are unaffected by scattering or disorder.…