Bochum Research Team (IMAGE) Ruhr-University Bochum Caption Sven Scholz (left) and Arne Ludwig are experts for generating quantum dots in semiconductors. Credit RUB, Kramer Usage Restrictions The image may only be used for reporting about the Ruhr-Universität Bochum in the context of the press release "Quantum communication: Detraction-free light-matter interaction", published in August 2019. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.