Fig. 2: Measurement of the hole g-tensor. | Nature Materials

Fig. 2: Measurement of the hole g-tensor.

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

Fig. 2

ac,eg, Cross-section of \({\overleftrightarrow{g}}\) of Q1 (ac) and Q2 (eg) in the xy plane (a,e), xz plane (b,f) and yz plane (c,g) of the magnet frame. Dots indicate measurements of g* and the solid line corresponds to the fit of \({\overleftrightarrow{g}}\). Exemplary resonance spectra used to extract \({\overleftrightarrow{g}}\) are plotted in Supplementary Fig. 1. d, Diagram indicating the zyz Euler rotation angles ϕ, θ and ζ of the principle g-tensor axes gx, gy and gz. The approximate crystal directions are indicated in square brackets. h, Overview of the three zyz Euler angles ϕ, θ and ζ for the rotation of a g-tensor with principle components gx, gy and gz for Q1 and Q2.

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