Figure 4
From: Singlet fission for quantum information and quantum computing: the parallel JDE model
Calculated prompt EPR spectra for the rotation of an oriented and parallel sample with respect to an applied field. \(\theta\) is the polar angle between the lab-fixed Zeeman axis and the principal \(z'\)-axis. Peak intensities are proportional to differences in state populations and are relative to intensities at \(\theta = 0^{\circ }\). Differences in the number and sign of the peaks are the result a \(\theta\)-dependent coupling between the \(|^1\text {TT}\rangle\) and the adiabatic \(|\alpha \rangle\) states described in the text. Colored lines follow specific transitions, indicated in the inset where states are ordered in energy with respect to the applied field. The parameters used to calculate the spectra are consistent with those reported in Fig. 5, where we discuss the spectrum for \(\theta = 90^{\circ }\).
