SEM of Diamond Nanoposts (IMAGE) Harvard University Caption SEM image of the diamond nanoposts used to advance quantum computing. Each one is approximately 100nm wide and 200nm tall. A nanometer is a billionth of a meter. Credit Jennifer Choy 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.