Key properties of quantum materials stem from dynamic interaction chains that connect
stable electronic quasiparticles through short-lived coherences, which are difficult to control …

In quantum materials, emergent functional properties resulting from strong correlations or
electronic topology offer opportunities for new applications. Over the past decade, ultrafast …

In recent years, the stacking and twisting of atom-thin structures with matching crystal
symmetry has provided a unique way to create new superlattice structures in which new …

Strong light fields have created opportunities to tailor novel functionalities of solids,,,–.
Floquet–Bloch states can form under periodic driving of electrons and enable exotic …

When intense lightwaves accelerate electrons through a solid, the emerging high-order
harmonic (HH) radiation offers key insights into the material,,,,,,,,,–. Sub-optical-cycle …

Symmetry breaking in 2D layered materials plays a significant role in their macroscopic
electrical, optical, magnetic and topological properties, including, but not limited to, spin …

The present status and development of strong-field nano-optics, an emerging field of
nonlinear optics, is discussed. A nonperturbative regime of light-matter interactions is …

Recently, symmetry-broken polaritons within low-symmetry crystals have triggered extensive
research interest since they present enhanced directionality of polariton propagation for …

High harmonic generation (HHG) has developed in recent years as a promising tool for
ultrafast materials spectroscopy. At the forefront of these advancements, several works …

Delocalized Bloch electrons and the low-energy correlations between them determine key
optical, electronic and entanglement functionalities of solids, all the way through to phase …