We use a real-space slave-rotor theory of the physics of topological Mott insulators, using
the Kane-Mele-Hubbard model as an example, and show that a topological gap in the …

For weakly interacting many-body quantum systems one can apply the extensive framework
of perturbative quantum field theory. On the other hand, strong interactions can not be …

We study transport across a magnetic impurity by means of a recently developed slave-spin
technique that does not require any constraint. Within a conserving mean-field …

Motivated by recent experimental progress in the realization of hybrid structures with a
topologically superconducting nanowire coupled to a quantum dot, viewed through the lens …

We introduce and develop a slave-spin mean-field technique for describing generic
interacting two-level systems under time-dependent drivings, where an auxiliary S= 1 spin is …