Electrons in two-dimensional hexagonal materials have an extra degree of freedom, the
valley pseudospin, that can be used to encode and process quantum information. Valley …

We explore pump-probe high harmonic generation (HHG) from monolayer hexagonal-boron-
nitride, where a terahertz pump excites coherent optical phonons that are subsequently …

Irradiating solids with ultrashort laser pulses is known to initiate femtosecond timescale
magnetization dynamics. However, sub-femtosecond spin dynamics have not yet been …

Analogous to charge and spin, electrons in solids endows an additional degree of freedom:
the valley pseudospin. Two-dimensional hexagonal materials such as graphene exhibit two …

High-pressure is a mechanical method to regulate the structure and internal interaction of
materials. Therefore, observation of properties' change can be realized in a relatively pure …

Processes involving ultrafast laser driven electron-phonon dynamics play a fundamental
role in the response of quantum systems in a growing number of situations of interest, as …

We identify and describe how intense short light pulses couple to massless Dirac fermions in
two-dimensional systems. The ensuing excitation dynamics exhibits unusual scaling with the …

Strongly correlated solids are complex and fascinating quantum systems, where new
electronic states continue to emerge, especially when interaction with light triggers interplay …

The injection of directional currents in solids with strong optical fields has attracted
tremendous attention as a route to realize ultrafast electronics based on the quantum …

High harmonic generation (HHG) promises to provide insight into ultrafast dynamics and has
been at the forefront of attosecond physics since its discovery. One class of materials that …