Our colleauges have experimented with a semiconductor-based artifical molecule to demonstrate topological features of a simple quantum system. Work published in the journal Communications Physics, from Nature Research.
Zoltán Scherübl, András Pályi, György Frank, István Endre Lukács, Gergő Fülöp, Bálint Fülöp, Jesper Nygård, Kenji Watanabe, Takashi Taniguchi, Gergely Zaránd, and Szabolcs Csonka
Observation of spin–orbit coupling induced Weyl points in a two-electron double quantum dot
Communications Physics 2, 108 (2019). (Open Access)