Scientists analyzing two configurations of bilayer graphene have detected “electronic and optical interlayer resonances”. These resonant states consist of electrons bouncing back and forth between two atomic planes, in a 2-D interface at the same frequency. However, they discovered that upon twisting one of the graphene layers 30 degrees to the other rather than stacking the layers directly shifts the resonance to a lower, calmer energy.
Using this, they came to the conclusion that when the distance between layers of graphene changes, the interactions between electrons and the layers changes as well.
This discovery could be used in the design of future quantum technologies, such as quantum computers.