Single-qubit-gate error below 10^-4 in a trapped ion

Details Single-qubit-gate error below 10^-4 in a trapped ion Single-qubit-gate error below 10^-4 in a trapped ion

2011-04-13

arxiv.org/abs/1104.2552v2

Physical Review A 84, 030303(R) (2011)

Physics

Quantum Physics

5 pages, 3 figures, 1 table; changed to match published version

Scientific paper

10.1103/PhysRevA84.030303

With a 9Be+ trapped-ion hyperfine-states qubit, we demonstrate an error probability per randomized single-qubit gate of 2.0(2) x 10^-5, below the threshold estimate of 10^-4 commonly considered sufficient for fault-tolerant quantum computing. The 9Be+ ion is trapped above a microfabricated surface-electrode ion trap and is manipulated with microwaves applied to a trap electrode. The achievement of low single-qubit-gate errors is an essential step toward the construction of a scalable quantum computer.

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