14-Qubit Entanglement: Creation and Coherence
| Autor: | William A. Coish, Maximilian Harlander, Philipp Schindler, Markus Hennrich, Daniel Nigg, Julio T. Barreiro, W. Hänsel, M. Chwalla, Thomas Monz, Rainer Blatt |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
Quantum Physics Cluster state FOS: Physical sciences General Physics and Astronomy Quantum entanglement 01 natural sciences 010305 fluids & plasmas Qubit Quantum mechanics 0103 physical sciences Quantum metrology Quantum information Quantum Physics (quant-ph) 010306 general physics Superconducting quantum computing Coherence (physics) Quantum computer |
| Zdroj: | Physical Review Letters |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/PhysRevLett.106.130506 |
| Popis: | We report the creation of Greenberger-Horne-Zeilinger states with up to 14 qubits. By investigating the coherence of up to 8 ions over time, we observe a decay proportional to the square of the number of qubits. The observed decay agrees with a theoretical model which assumes a system affected by correlated, Gaussian phase noise. This model holds for the majority of current experimental systems developed towards quantum computation and quantum metrology. Comment: 4 pages, 2 figures, 1 table |
| Databáze: | OpenAIRE |
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