However, the overcoherence problem may prevent the wavefunction-based trajectory analysis method from being a reliable choice. Note that Subotnik and coworkers proposed an expression for the coherence distribution by comparing the equation of motion of density matrix constructed from trajectories to that by the QCLE. In this framework, two independent definitions of the coherence distribution can be formed as different surfaces carry different trajectories, and the average of the two expressions can be considered.