Figure 4
From: Observations about utilitarian coherence in the avian compass
Compass anisotropy \(\Delta _{S}\) as a measure of compass sensitivity is plotted against the global measure of coherence \([{\mathcal {C}}_{y}^{{\mathcal {G}}}]_{B=0}\), an operational measure that represents the coherence contribution of the total nuclear and electronic state to the singlet yield evaluated in the absence of a magnetic field. (a) Correlation plot for the flavin–tryptophan model. (b) Correlation plot for flavin–tyrosine model. Data has been coloured according to the radical relative orientation angle \(\beta\), ranging from \(0^{\circ }\) (blue) to \(180^{\circ }\) (yellow), and a linear fit (red line) with associated Pearson correlation coefficient R is displayed.
