Ultrafast Coherent Coupling of Atomic Hyperfine and Photon Frequency Qubits
arXiv:quant-ph/0603258
Abstract
We demonstrate ultrafast coherent coupling between an atomic qubit stored in a single trapped cadmium ion and a photonic qubit represented by two resolved frequencies of a photon. Such ultrafast coupling is crucial for entangling networks of remotely-located trapped ions through photon interference, and is also a key component for realizing ultrafast quantum gates between Coulomb-coupled ions.
4 pages, 4 figures