Ab initio calculations of ultra-short carrier dynamics in 2D materials: valley depolarization in single-layer WSe${}_2$

Alejandro Molina-Sánchez, Davide Sangalli, Ludger Wirtz +1

In single-layer WSe${}_2$, a paradigmatic semiconducting transition metal dichalcogenide, a circularly polarized laser field can selectively excite electronic transitions in one of t…