  We study the dynamics of the fluctuations of the variance $s$ of the order
parameter of the Gaussian model, following a temperature quench of the thermal
bath. At each time $t$, there is a critical value $s_c(t)$ of $s$ such that
fluctuations with $s>s_c(t)$ are realized by condensed configurations of the
systems, i.e., a single degree of freedom contributes macroscopically to $s$.
This phenomenon, which is closely related to the usual condensation occurring
on average quantities, is usually referred to as {\it condensation of
fluctuations}. We show that the probability of fluctuations with $s<\inf_t
[s_c(t)]$, associated to configurations that never condense, after the quench
converges rapidly and in an adiabatic way towards the new equilibrium value.
The probability of fluctuations with $s>\inf_t [s_c(t)]$, instead, displays a
slow and more complex behavior, because the macroscopic population of the
condensing degree of freedom is involved.
