Single-Photon Server (IMAGE) Max-Planck-Gesellschaft Caption A single atom trapped in a cavity generates a single photon after being triggered by a laser pulse. After the source is characterized, the subsequent photons can be distributed to a user. Credit Max Planck Institute of Quantum Optics 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.