Jaewoo Joo, Emilio Alba, Juan José García-Ripoll, Timothy P. Spiller
We propose two schemes for implementing graph states useful for faulttolerant measurement-based quantum computation in 2D optical lattices. We show that bilayer cluster and surface code states can be created by just global single-row and controlled-Z operations. The schemes benefit from the accessibility of atom addressing on 2D optical lattices and the existence of a verification protocol which allows us to ensure the experimental feasibility of measuring the fidelity of the system against the ideal graph state. The simulation results show potential for a physical realisation toward fault-tolerant measurement-based quantum computation in the presence of defects in optical lattices.
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http://arxiv.org/abs/1207.0253
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