Dipole fluctuations of the AA oligomer (l= 40) in MeCN solvents over time, where the thin pink, sky-blue, and light-green lines show the dipole of the AA oligomer at each picosecond, and the thick red, blue, and green lines indicate moving averages with a window size of 20 ps. The gray lines show the dipoles of the AA oligomers in the gas phase calculated by removing solvents from the trajectories.
