A quantum mechanical link between two mechanical oscillators has never been directly demonstrated. This study achieves direct coupling between single ions oscillating in traps separated over a distance of 54 micrometres. Additional ions are employed as antennae to amplify the coupling. The system may provide a building block for quantum computers and opportunities for coupling different types of quantum systems, such as trapped Rydberg atoms.
- M. Harlander
- R. Lechner
- W. Hänsel
