Access

Letter

Nature Physics 3, 538–541 (1 August 2007) | doi:10.1038/nphys644

Quantum interference of photon pairs from two remote trapped atomic ions

P. Maunz , D. L. Moehring , S. Olmschenk , K. C. Younge , D. N. Matsukevich & C. Monroe

Trapped atomic ions are among the most attractive implementations of quantum bits for applications in quantum-information processing, owing to their long trapping lifetimes and long coherence times. Although nearby trapped ions can be entangled through their Coulomb-coupled motion, it seems more natural to entangle remotely located ions through a coupling mediated by photons, eliminating the need to control the ion motion.