14-Qubit Entanglement: Creation and Coherence
- 31 March 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 106 (13), 130506
- https://doi.org/10.1103/physrevlett.106.130506
Abstract
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. DOI: http://dx.doi.org/10.1103/PhysRevLett.106.130506 © 2011 American Physical SocietyKeywords
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