Fig. 4.

Reduced energy transfer rate measurements using a phase-randomised electric field. a, b Same as in Fig. 2 except with randomised E_||. c Energy transfer rate $C_{E_{\mid \mid \mathrm{,e}}}\left(v_{\mid \mid }\right)$ (blue) with the mean of the ensemble of phase randomisations (black) and shaded areas representing ±1σ (dark grey) and ±2σ (light grey). d Same for $C_{E_{\mid \mid },\mathrm{e}}$ (integrated over $v_{\mid \mid }$) shown as a function of time t