  In a typical single molecule experiment, dynamics of an unfolded proteins is
studied by determining the reconfiguration time using long-range Forster
resonance energy transfer where the reconfiguration time is the characteristic
decay time of the position correlation between two residues of the protein. In
this paper we theoretically calculate the reconfiguration time for a single
flexible polymer in presence of active noise. The study suggests that though
the MSD grows faster, the chain reconfiguration is always slower in presence of
long-lived active noise with exponential temporal correlation. Similar behavior
is observed for a worm like semi-flexible chain and a Zimm chain. However it is
primarily the characteristic correlation time of the active noise and not the
strength that controls the increase in the reconfiguration time. In a nutshell,
such active noise makes the polymer to move faster but the correlation loss
between the monomers becomes slower.
