Before revision:  The force-force correlations are measured, and compared to predictions from an exact solution of a 1-d toy model , as well as field theory based on functional renormalization. Within error bars, the agreement is excellent .
After revision:  The force-force correlations are measured, and compared to predictions from an exact solution of a 1-d toy model with the experiment, we find an excellent agreement, confirming fundamental theoretical concepts via a biologically inspired experiments .