Quantum information processing with trapped ions
David J. Wineland, M. D. Barrett, J. Britton, John Chiaverini, Brian DeMarco, Wayne M. Itano, B. M. Jelenkovic, C. Langer, Dietrich G. Leibfried, V. Meyer, Till Rosenband, T. Schätz · Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences · 2003
Experiments directed towards the development of a quantum computer based on trapped atomic ions are described briefly. We discuss the implementation of single-qubit operations and gates between qubits. A geometric phase gate between two ion qubits is described. Limitations of the trapped-ion method such as those caused by Stark shifts and spontaneous emission are addressed. Finally, we describe a strategy to realize a large-scale device.