Floquet engineering, the control of quantum systems using periodic driving, is an old
concept in condensed matter physics dating back to ideas such as the inverse Faraday …

Floquet systems are governed by periodic, time-dependent Hamiltonians. Prima facie they
should absorb energy from the external drives involved in modulating their couplings and …

We investigate the quantum anomalous Hall effect (QAHE) and related chiral transport in the
millimeter-size (Cr 0.12 Bi 0.26 Sb 0.62) 2 Te 3 films. With high sample quality and robust …

Two fundamental ingredients play a decisive role in the foundation of fluctuation relations:
the principle of microreversibility and the fact that thermal equilibrium is described by the …

The study of nonequilibrium phenomena in correlated lattice systems has developed into
one of the most active and exciting branches of condensed matter physics. This research …

We construct a systematic high-frequency expansion for periodically driven quantum
systems based on the Brillouin-Wigner (BW) perturbation theory, which generates an …

Transport phenomena in spatially periodic systems far from thermal equilibrium are
considered. The main emphasis is put on directed transport in so-called Brownian motors …

Response of electronic systems in intense lights (ac electric fields) to dc source-drain fields
is formulated with the Floquet method. We have then applied the formalism to graphene, for …

Topological insulators represent unique phases of matter with insulating bulk and
conducting edge or surface states, immune to small perturbations such as backscattering …

The main objective of quantum simulation is an in-depth understanding of many-body
physics, which is important for fundamental issues (quantum phase transitions, transport,…) …