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The Floquet-Boltzmann equation
Maximilian Genske, Achim Rosch
Periodically driven quantum systems can be used to realize quantum pumps, ratchets, artificial gauge fields and novel topological states of matter. Starting from the Keldysh approa…
Revealing puddles of electrons and holes in compensated topological insulators
N. Borgwardt, J. Lux, I. Vergara +7
Three-dimensional topological insulators harbour metallic surface states with exotic properties. In transport or optics, these properties are typically masked by defect-induced bul…
Critical elasticity at zero and finite temperature
Mario Zacharias, Achim Rosch, Markus Garst
Elastic phase transitions of crystals and phase transitions whose order parameter couples linearly to elastic degrees of freedom are reviewed with particular focus on instabilities…
Spin-Peierls Instability of Three-Dimensional Spin Liquids with Majorana Fermi Surfaces
Maria Hermanns, Simon Trebst, Achim Rosch
Three-dimensional (3D) variants of the Kitaev model can harbor gapless spin liquids with a Majorana Fermi surface on certain tricoordinated lattice structures such as the recently…
Equilibration and Approximate Conservation Laws: Dipole Oscillations and Perfect Drag of Ultracold Atoms in a Harmonic Trap
Robert Bamler, Achim Rosch
The presence of (approximate) conservation laws can prohibit the fast relaxation of interacting many-particle quantum systems. We investigate this physics by studying the center-of…
Inertia, diffusion and dynamics of a driven skyrmion
Christoph Schütte, Junichi Iwasaki, Achim Rosch +1
Skyrmions recently discovered in chiral magnets are a promising candidate for magnetic storage devices because of their topological stability, small size (nm), and ultr…