Architecture for a large-scale ion-trap quantum computer

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Title Architecture for a large-scale ion-trap quantum computer
Author Kielpinski, David; Monroe, C.; Wineland, D.J.
Journal Name Nature
Year Published 2002
Place of publication England
Publisher Nature Publishing Group
Abstract Among the numerous types of architecture being explored for quantum computers are systems utilizing ion traps, in which quantum bits (qubits) are formed from the electronic states of trapped ions and coupled through the Coulomb interaction. Although the elementary requirements for quantum computation have been demonstrated in this system, there exist theoretical and technical obstacles to scaling up the approach to large numbers of qubits. Therefore, recent efforts have been concentrated on using quantum communication to link a number of small ion-trap quantum systems. Developing the array-based approach, we show how to achieve massively parallel gate operation in a large-scale quantum computer, based on techniques already demonstrated for manipulating small quantum registers. The use of decoherence-free subspaces significantly reduces decoherence during ion transport, and removes the requirement of clock synchronization between the interaction regions.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.nature.com/nature/index.html
Alternative URI http://dx.doi.org/10.1038/nature00784
Volume 417
Page from 709
Page to 711
ISSN 0028-0836
Date Accessioned 2006-07-20
Date Available 2008-11-27T01:03:33Z
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science
Subject Atomic and Molecular Physics
URI http://hdl.handle.net/10072/15491
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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