We review recent work on low-frequency Floquet engineering and its application to quantum
materials driven by light, focusing on van der Waals systems hosting Moiré superlattices …

High-harmonic generation in the two topological phases of a finite, one-dimensional,
periodic structure is investigated using a self-consistent time-dependent density functional …

Ultrafast experiments using sub-picosecond pulses of light are poised to play an important
role in the study and use of topological materials and, particularly, of the three-dimensional …

Floquet engineering consists in the modification of physical systems by the application of
periodic time-dependent perturbations. The search for the shape of the periodic perturbation …

High-harmonic generation by a laser-driven solid slab is simulated using time-dependent
density functional theory. Multiple harmonic plateaus up to very high harmonic orders are …

The period-doubling oscillation emerges due to the coexistence of zero and π modes in
Floquet topological insulators (FTIs). Here, leveraging the flexibility of the electric circuit, we …

It is generally believed that non-Hermiticity can transform Weyl semimetals into Weyl-
exceptional-ring semimetals. However, this belief is from the systems without skin effect. We …

We experimentally elucidate the origin of the anomalous Hall conductivity in a three-
dimensional Dirac semimetal, Cd 3 As 2, driven by circularly polarized light. Using time …

A single Weyl fermion, which is prohibited in static lattice systems by the Nielsen-Ninomiya
theorem, is shown to be realized in a periodically driven three-dimensional lattice system …

This work reports the general design and characterization of two exotic, anomalous
nonequilibrium gapless topological phases. In equilibrium systems, the Weyl nodes or the …