12 papers
Composite Quantum Geometry and Semiclassical Dynamics
Henry Davenport, Yoonseok Hwang, Johannes Knolle +1
We derive semiclassical equations of motion for general composite bound states in insulators and semiconductors, covering excitations such as excitons and trions. For neutral compo…
Odd-parity magnons in the Haldane-Hubbard model from topological exciton condensation
Rintaro Eto, Johannes Knolle
Odd-wave magnets are the counterparts to even-wave altermagnets realizing odd-parity spin splitting. Normally discussed for noncollinear systems, they have recently been shown to a…
Uncovering Exotic Paired States in the 2D Spin-Imbalanced Fermi Gas with Neural Wave Functions
Wan Tong Lou, Gino Cassella, Andres Perez Fadon +5
We study the zero-temperature phase diagram of the 2D spin-imbalanced Fermi gas with short-ranged attractive interactions using the recently developed neural network variational Mo…
Dynamical dimer structure factor of the triangular Heisenberg antiferromagnet
Markus Drescher, Laurens Vanderstraeten, Roderich Moessner +2
The dynamical dimer structure factor is an observable probing spin-singlet excitations of quantum magnets distinct from those commonly studied by the spin structure factor. We repo…
Dichroic Raman probes for chiral edge modes
Avedis Neehus, Johannes Knolle
The identification and manipulation of charge-neutral fractionalized quasi-particles, in particular chiral edge modes (CEM), is a long-standing quest in physics. Remarkably, the mi…
Probing topology in thin films with quantum Sondheimer oscillations
Léo Mangeolle, Johannes Knolle
Sondheimer oscillations (SO) are magnetoresistance oscillations occurring in thin films due to the commensurability between cyclotron motion and sample thickness, and are tradition…