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Advances in Mathematical Physics
Volume 2010 (2010), Article ID 482598, 21 pages
http://dx.doi.org/10.1155/2010/482598
Review Article

Cluster State Computation with Quantum-Dot Charge Qubits

School of Physics, The University of Western Australia, Perth, WA 6009, Australia

Received 14 July 2009; Accepted 15 October 2009

Academic Editor: Shao-Ming Fei

Copyright © 2010 Matthew Lubelski Katz and Jingbo Wang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Quantum computers are expected to far surpass the capabilities of today's most powerful supercomputers, particularly in areas such as the theoretical simulation of quantum systems, cryptography, and information processing. The cluster state is a special, highly entangled quantum state that forms the universal resource on which measurement-based quantum computation can be performed. This paper provides a brief review of the theoretical foundations of cluster state quantum computation and how it evolved from the traditional model of digital computers. It then proposes a scheme for the generation of such entanglement in a solid-state medium through the suppression of resonant tunneling of a ballistic electron by a single-electron charge qubit. To investigate the viability of the scheme for the creation of cluster states, numerical calculations are performed in which the entanglement interaction is modeled in detail.