Quantum information processing (QIP) can potentially provide an exponential speedup for certain problems over the corresponding (known) algorithms on conventional computers. QIP makes use of the counter-intuitive properties of quantum mechanics, like entanglement and the superposition principle (being in more states than one simultaneously). On the way towards a useful QIP device these properties, mostly subject of thought experiments so far, will have to become a practical reality. Atomic ions confined in an array of interconnected traps represent a potentially scalable approach to QIP. All basic requirements have been experimentally demonstrated in the last few years. The remaining task is to scale this approach to a large QIP device while minimizing and correcting errors in the system. The talk will give a brief introduction to quantum information processing, followed by a survey of recent progress in implementing quantum algorithms with up to six ions in trap arrays. Efforts towards micro-fabrication and integration of larger trap arrays will also be discussed, and the prospects and challenges of this particular approach will be summarized.
10 Minute Talk: Magnetic Trapping of Atomic Nitrogen and Cotrapping of NH