Fig. 4
From: Simultaneous path weak-measurements in neutron interferometry
The complex weak values \({\langle {{\hat{\Pi }}_j}\rangle }_\textrm{w}\) given through (a) the real and (b) the imaginary part dependent on the interferometric phase shift \(\chi\) with theoretical predictions. In (a) and (b), the dashed frame is magnified on the bottom. Error bars indicate one standard deviation and include the systematic errors. Solid curves are the theoretical prediction in the limit of the spin rotation angle \(\alpha \ll 1\). Dashed curves indicate the expected behaviour of the linear data analysis used with the applied finite spin rotation angle \(\alpha =\pi /9\). Where the solid and dashed lines separate, the linear approximation in \(\alpha\) of Eq. (9) does not hold anymore.
