Gate‐Controlled Quantum Dots Based on 2D Materials

Two-dimensional (2D) materials are a family of layered exhibiting rich exotic phenomena, such as valley-contrasting physics. Down to single-particle level, unraveling fundamental physics and potential applications including quantum information processing in these attracts significant research interests. To unlock great potentials, gate-controlled dot architectures have been applied 2D their heterostructures. Such systems provide the possibility electrical confinement, control, manipulation single carriers materials. In this review, efforts dots presented. Following basic introductions valley degree freedom systems, up-to-date progress etched gate-defined materials, especially graphene transition metal dichalcogenides, is provided. The challenges opportunities for future developments field, from views device design, fabrication scheme, control technology, discussed. rapid field not only sheds light on understanding spin-valley physics, but also provides an ideal platform investigating diverse condensed matter phenomena realizing computation limit.