Persistence of partial memory recovery in classical Yang–Mills ensembles

Determine whether the partial recovery of initially suppressed sensitivity found in the reduced classical Yang–Mills model persists for ensembles appropriate to the Glasma when spatial fluctuations and possible instabilities are included, and distinguish dynamical contraction from effects induced by the chosen statistical description.

Background

The reduced classical Yang–Mills example exhibits early expansion-driven memory loss, followed by partial recovery of suppressed sensitivity while expansion still dominates, and later oscillatory dynamics without further systematic contraction. This behavior contrasts with a simple monotonic picture in which information is progressively erased.

The paper identifies an unresolved issue concerning whether this effect survives in more realistic Glasma ensembles that include spatial fluctuations and possible instabilities. It also calls for separating genuine dynamical contraction from changes caused by ensemble averaging or other choices in the statistical description.