 ![Autocorrelation function at different mean numbers of $k$ measured in each TWB arm. The two panels correspond to the two arms. Black dots + error bars: experimenta data; magenta circles: theoretical fitting curve according to Eq. (\[g0mthXC\]); blue line: classical boundary. The values of the mean error [@meanerror] with respect to red circles are 0.000 in the upper panel and 0.000 in the lower panel.[]{data-label="g0single"}](g0ch0 "fig:"){width="0.0\columnwidth"} ![Autocorrelation function at different mean numbers of $k$ measured in each TWB arm. The two panels correspond to the two arms. Black dots + error bars: experimenta data; magenta circles: theoretical fitting curve according to Eq. (\[g0mthXC\]); blue line: classical boundary. The values of the mean error [@meanerror] with respect to red circles are 0.000 in the upper panel and 0.000 in the lower panel.[]{data-label="g0single"}](g0ch0 "fig:"){width="0.0\columnwidth"} 