- Ruhr-Universität Bochum

On a crystal disc, known as a semiconductor wafer, the researchers grow the quantum dots using a multi-step process in an ultra-high vacuum chamber. © Damian Gorczany
Quantum Communication

Secret mailbox in the crystal

To securely transmit information, researchers generate individual light particles in a high-purity crystal. A team in Bochum is a master at producing the necessary hardware.

A Bochum-based team led by MRD member Dr. Arne Ludwig is setting new standards in quantum communication by producing world-class quantum dots — tiny light particles used to transmit information securely. Their patented method allows precise placement of these dots, a major step forward in the field. Together with simulation experts from ICAMS - Interdisciplinary Centre for Advanced Materials Simulation, they’re pushing boundaries to refine this tech even further.

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Published
April 23rd, 2025
Author
Julia Weiler (jwe)