Measurement-based quantum computation with trapped ions
Abstract
Measurement-based quantum computation (MBQC) represents a powerful and flexible framework for quantum information processing, based on the notion of entangled quantum states as computational resources. The most prominent application is the one-way quantum computer, with the cluster state as its universal resource. Here we demonstrate the principles of MBQC using deterministically generated graph states of up to 7 qubits, in a system of trapped atomic ions. Firstly we implement a universal set of operations for quantum computing. Secondly we demonstrate a family of measurement-based quantum error correction codes, and show their improved performance as the code length is increased. We show that all our graph states violate a multipartite Bell inequality and are therefore capable of information processing tasks that cannot be described by a local hidden variable model. The methods presented can directly be scaled up to generate graph states of several tens of qubits.
Cite
@article{arxiv.1308.5102,
title = {Measurement-based quantum computation with trapped ions},
author = {B. P. Lanyon and P. Jurcevic and M. Zwerger and C. Hempel and E. A. Martinez and W. Dür and H. J. Briegel and R. Blatt and C. F. Roos},
journal= {arXiv preprint arXiv:1308.5102},
year = {2014}
}
Comments
4 pages, 5 main figures, 10 pages of supplementary information