3 papers
gr-qc2026
Dark energy genesis: modeling dissipative effects in primordial cosmology
Pietro Pellecchia, Alejandro Perez, Salvatore Ribisi
In various approaches to quantum gravity, spacetime geometry is understood to emerge from more fundamental discrete structures at the Planck scale. As sometimes posited, their pres…
gr-qc2026
Emergence of cosmic structure from Planckian discreteness
Gabriel R. Bengochea, Gabriel Leon, Alejandro Perez
In the standard inflationary paradigm the inhomogeneities observed in the CMB arise from quantum fluctuations of an initially homogeneous and isotropic vacuum state. This picture s…
gr-qc2025
Is Planckian discreteness observable in cosmology?
Gabriel R. Bengochea, Gabriel Leon, Alejandro Perez
A Planck scale inflationary era -- in a quantum gravity theory predicting discreteness of quantum geometry at the fundamental scale -- produces the scale invariant spectrum of inho…