Impact of generalized holonomy corrections on the cosmological primordial power spectra

TL;DR

This paper investigates how generalized holonomy corrections influence the primordial power spectra in cosmology, confirming the robustness of key loop quantum cosmology results despite detailed correction impacts.

Contribution

It provides a fully consistent analysis of perturbation propagation with generalized holonomy corrections, maintaining the closure of the constraint algebra.

Findings

Primordial power spectra are affected by correction details.

Main loop quantum cosmology results remain robust.

Propagation of perturbations is consistently studied.

Abstract

The propagation of perturbations is studied with generalized holonomy corrections in a fully consistent way, ensuring that the deformed algebra of constraints remains closed. The primordial cosmological power spectra are calculated. It is shown that, although the detailed form of the correction does unavoidably impact the observables, the main known results of loop quantum cosmology are robust in this respect.