Quantum Random Number Generator Chip (IMAGE) Optica Caption Researchers created a chip-based device measuring a millimeter square that can potentially generate quantum-based random numbers at gigabit per second speeds. The small square to the right of the penny contains all the optical components of the random number generator. Credit Francesco Raffaelli, University of Bristol Usage Restrictions None 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.