Fig. 4 | npj Quantum Information

Fig. 4

From: Integrated 9Be+ multi-qubit gate device for the ion-trap quantum computer

Fig. 4

Simulated infidelity assuming different variations of the relative motional mode frequency and lengths of the frequency “chirp” while considering otherwise ideal gate dynamics. In all cases, the gate parameters are as specified in the text. The experimental condition of the presented two-qubit gate is given by the intersection of the vertical line with the solid blue line. The inset illustrates the observed linear frequency increase of the selected motional mode of about 0.3 Hz μs−1 at the beginning of the gate pulse until time Tchirp

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