DRSN XIX: Drifted Spectral Applications I. Cosmology, Cosmic Superstrings and String Phenomenology (De Rerum Spectrale Natura, Report XIX, Version 1.0)

We develop the first set of physical applications of the Drifted Spectral Universe established
in DRSN I–XVIII. The drift deformation of Dirac-type operators induces a universal quartic
spectral potential that drives FRW cosmology, cosmic superstring dynamics, drifted tension
evolution, gravitational-wave backgrounds, brane–antibrane inflation and internal string
phenomenology. Connections to pulsar timing array signals, drifted network evolution, brane–
antibrane inflation dictionaries, and drifted internal Yukawa structures are established within
a unified operator-theoretic framework.