Helmholtz Nano Facility (IMAGE) Forschungszentrum Juelich Caption The double quantum dots were produced at the Helmholtz Nano Facility, the central technology platform for the production of nanostructures and circuits in the Helmholtz Association. Credit Forschungszentrum Jülich / Sascha Kreklau Usage Restrictions Editorial use permitted with credit to source. License Original 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.