Figure 1
Joan Tycko, after R. Bustos-MarĂșn et al. [1]

Figure 1: A cartoon depicting a hypothetical quantum motor. Changes in the interference pattern of electron waves traveling through a small channel (the bagpipe shape) interact with charges on a nanoscale wheel, which rotates in response. The rotation of the wheel is in synchrony with the interference pattern formed by the electron current at the two black dots.