Accuracy of perturbation-aware ansätze for other perturbations
Determine whether perturbation-aware ansätze achieve accuracy comparable to the in-plane-field DIVA realization for other perturbations, including out-of-plane magnetic fields and Oersted-field contributions in spin-torque oscillators, by deriving tractable deformation profiles for the relevant perturbations.
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Beyond the in-plane field treated here, the concept is expected to apply to other perturbations whose source admits a clear symmetry: out-of-plane fields and Oersted contributions associated with the driving current in spin-torque oscillators each populate a different harmonic. The most immediate application target is the construction of perturbation-aware Thiele coefficients in which the deformation modifies the stiffness, damping, and gyrotropic terms governing core dynamics. Systematic inclusion of higher harmonics would extend the construction toward the finite-displacement regime relevant to large-amplitude oscillations. The in-plane case shows that perturbation-aware ansätze are both constructible and quantitatively accurate; whether the same accuracy holds for other perturbations depends on each admitting its own tractable solution.