Artificial intelligence for artificial materials: moiré atom

Moir'e engineering in atomically thin van der Waals heterostructures creates artificial quantum materials with designer properties. We solve the many-body problem of interacting electrons confined to a moir'e superlattice potential minimum (the moir'e atom) using a 2D fermionic neural network. We show that strong Coulomb interactions in combination with the anisotropic moir'e potential lead to striking ``Wigner molecule"charge density distributions observable with scanning tunneling microscopy.