Extended Data Fig. 8: Lever arm extraction of the plunger gates. | Nature Materials

Extended Data Fig. 8: Lever arm extraction of the plunger gates.

From: Sweet-spot operation of a germanium hole spin qubit with highly anisotropic noise sensitivity

Extended Data Fig. 8

We extract the lever arm of the plunger gates by tuning the charge sensor into a transport double quantum dot underneath gates SB1 and SB2, which are lithographically identical to qubit gates P1 and P2. We measure the bias triangles at VSD = 1 mV and find an average plunger lever arm of αP = 7.4(8)%, with the uncertainty as obtained from the scatter of α for gates SB1 and SB2.

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