Quantum Light Sources Realized Via Site-Selective Defect Engineering

When photons can be used to transmit information at the speed of light, quantum light sources, connected with quantum fiber optic cables and detectors, will be a requirement. An international team led by physicists at the Technical University of Munich (TUM) has taken a step toward providing light sources for quantum technologies, by creating quantum light sources in atomically thin material layers and positioning them within the material with nanometer-scale accuracy. The ability to precisely control the placement of the light sources is critical to their value, the researchers said. While it is possible to create quantum light sources in conventional 3D materials such as diamond or silicon, the light sources cannot be precisely...