Fig. 3: Association and dissociation processes.

a, Remaining dimer number ND after the association ramp. The dark blue circles show the total number of dimers, including dissociated tetramers, whereas the light circles show the dimer number after removal of the tetramers. The solid blue line is a fit to an error function. The vertical dashed line marks the theoretical resonance position. b,c, Waveform of the association (b) and dissociation (c) ramps. In b, the blue solid line shows the waveform with the removal of the tetramers and the blue dashed line shows the waveform without the removal of the tetramers. The horizontal dashed lines indicate the theoretically predicted resonance position. The circles show the target ellipticity of the association or dissociation ramp, which is plotted in a and d, respectively. d, Increase in the detected dimer number during the dissociation ramp. The solid orange line is a fit to an error function. The vertical dashed line shows the predicted resonance position. The error bars represent the standard error of the mean of ten experiment repetitions.