Cosmological implications of generalized holonomy corrections
arXiv:2109.14400 · doi:10.1103/PhysRevD.105.063521
Abstract
Most of the phenomenology of loop quantum gravity in the cosmological sector is based on the so-called holonomy correction to the Hamiltonian constraint. It straightforwardly modifies the Friedmann equations. In this work, we investigate the influence of corrections generalizing the one usually used in loop quantum cosmology. We find that a long enough inflation phase can be generated by purely quantum geometrical effects but we also underline the limitations of this scenario. In addition, we study the effects of generalized holonomy corrections on an inflationary phase generated by a massive scalar field. At the level of perturbations, we investigate in details the consequences on the primordial scalar power spectrum.
References in corpus (10)
- The Effective Field Theory of Inflation
- A Short Review of Loop Quantum Gravity
- Hybrid quantization of an inflationary universe
- Consistency of holonomy-corrected scalar, vector and tensor perturbations in Loop Quantum Cosmology
- Anomaly-free cosmological perturbations in effective canonical quantum gravity
- Emerging singularities in the bouncing loop cosmology
- Loop quantum cosmology with higher order holonomy corrections
- Exhaustive investigation of the duration of inflation in effective anisotropic loop quantum cosmology
- A pure general relativistic non-singular bouncing origin for the Universe
- Curvature bounce in general relativity: background and primordial spectrum