5 papers
Light-driven octupolar inverse Faraday effect and multipolar order in Mott insulators
Saikat Banerjee, Tara Steinhöfel, Florian Lange +2
Hidden multipolar orders in spin-orbit-coupled Mott insulators provide a promising setting for correlated quantum matter, yet their control and detection remain major challenges. H…
Decay of spin helices in XXZ quantum spin chains with single-ion anisotropy
Florian Lange, Frank Göhmann, Gerhard Wellein +1
Long-lived spin-helix states facilitate the study of non-equilibrium dynamics in quantum magnets. We consider the decay of transverse spin-helices in antiferromagnetic spin- XXZ…
Cross-talk in superconducting qubit lattices with tunable couplers -- comparing transmon and fluxonium architectures
F. Lange, L. Heunisch, H. Fehske +2
Cross-talk between qubits is one of the main challenges for scaling superconducting quantum processors. Here, we use the density-matrix renormalization-group to numerically analyze…
Metal-insulator transition of spinless fermions coupled to dispersive optical bosons
Florian Lange, Holger Fehske
Including the previously ignored dispersion of phonons we revisit the metal-insulator transition problem in one-dimensional electron-phonon systems on the basis of a modified spinl…
Cache Blocking of Distributed-Memory Parallel Matrix Power Kernels
Dane C. Lacey, Christie L. Alappat, Florian Lange +3
Sparse matrix-vector products (SpMVs) are a bottleneck in many scientific codes. Due to the heavy strain on the main memory interface from loading the sparse matrix and the possibl…