Entangled States of Trapped Ions

R. Blatt, David J. Wineland

Mang Feng, Xiaoguang Wang

We propose a scheme to perform basic gates of quantum computing and prepare entangled states in a system with cold trapped ions located in a single-mode optical cavity. General quantum computing can be done with both the motional state of the trapped ion and cavity state being qubits. We can also generate different kinds of entangled states in such a system without state reduction, and can transfer quantum states from an ion in one trap to an ion in another trap. The experimental requirements for achieving our scheme are discussed.

B. Kneer, C. K. Law

We present a scheme that deterministically generates an arbitrary prescribed quantum entangled state of a trapped ion. The quantum entanglement is between the external (center-of-mass motion in one dimension) and the internal (electronic) state of the trapped ion. We examine the influence of technical errors in our scheme. Further we show how to entangle the center-of-mass motion of the confined ion in two dimensions.

Christoph Becher, Jan Benhelm, D. Chek-al-kar +16 more

Christoph Becher, H. G. Barros, Jan Benhelm +15 more

We report on the scalable and deterministic generation and tomographic characterization of entangled states of up to 8 trapped ions and experiments towards entangling ions and photons.

Charles A. Sackett