Stacked up against the rest

Scientists have hypothesized that moir excitons — electron-hole pairs confined in moir interference fringes which overlap with slightly offset patterns — may function as qubits in next-generation nano-semiconductors. However, due to diffraction limits, it has not been possible to focus light enough in measurements, causing optical interference from many moir excitons. To solve this, researchers have developed a new method of reducing these moir excitons to measure the quantum coherence time and realize quantum functionality.