Quantum Computers Counting on Carbon Nanotubes (image) Technische Universitaet Muenchen Share Print E-Mail Caption A nanotube (black) can be clamped and excited to vibrate like a guitar string. An electric field (electrodes: blue) ensures that two of the many possible states can be selectively addressed. Credit Michael J. Hartmann, TUM Usage Restrictions None Share Print E-Mail 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.