Cluster-state quantum computation

Details Cluster-state quantum computation Cluster-state quantum computation

2005-04-13

arxiv.org/abs/quant-ph/0504097v2

Physics

Quantum Physics

15 pages, resubmitted version accepted to Rev. Math. Phys

Scientific paper

10.1016/S0034-4877(06)80014-5

This article is a short introduction to and review of the cluster-state model of quantum computation, in which coherent quantum information processing is accomplished via a sequence of single-qubit measurements applied to a fixed quantum state known as a cluster state. We also discuss a few novel properties of the model, including a proof that the cluster state cannot occur as the exact ground state of any naturally occurring physical system, and a proof that measurements on any quantum state which is linearly prepared in one dimension can be efficiently simulated on a classical computer, and thus are not candidates for use as a substrate for quantum computation.

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