The Moiré the Merrier

Quantum materials possess many exotic states of matter and exhibit macroscopically observable phenomena that are directly linked to fundamental quantum-mechanical effects such as entanglement. While intrinsically interesting and a challenge to our basic understanding of quantum mechanics they also have great potential for technological applications. Finding actual experimental realizations is another tough challenge. In my talk I will introduce moiré materials: these form when stacking two atomically thin materials on top of each other. Their unprecedented experimental tunability allows physicists to effectively engineer and observe a remarkable wealth of quantum phenomena, and raises novel theoretical questions.