Measurement-based quantum computation with trapped ions
| Autor: | Lanyon, B. P., Jurcevic, P., Zwerger, M., Hempel, C., Martinez, E. A., Dür, W., Briegel, H. J., Blatt, R., Roos, C. F. |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Physical Review Letters 111, 210501 (2013) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.111.210501 |
| Popis: | 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. Comment: 4 pages, 5 main figures, 10 pages of supplementary information |
| Databáze: | arXiv |
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