Loop quantum inflation with inverse volume corrections in light of ACT data

2025/10/04 by Parvizi, Farough, Heydari, Soma, Solbi, Milad +1 · 1 citation
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2510.03882

Abstract

Within the framework of loop quantum cosmology (LQC), we investigate the effect of inverse volume corrections on the low scale spontaneously broken supersymmetric (SB SUSY) and exponential inflationary potentials. The LQC modifications to the Friedmann equations and cosmological perturbation parameters are employed to assess the observational viability of these models against recent data from the Atacama Cosmology Telescope (ACT). Our results indicate that in contrary to the standard model of inflation, in the presence of inverse volume corrections in LQC, the prediction of SB SUSY and exponential potentials in the r-n_{\rm s} plane lie inside the 68% confidence level interval of the ACT data.

Citations

• α-attractor inflation modified by GUP in light of ACT observations
• Refined Predictions for Starobinsky Inflation and Post-inflationary Constraints in Light of ACT
• Palatini Linear Attractors Are Back in ACTion
• Independent connection in ACTion during inflation
• Primordial black holes in SB SUSY Gauss-Bonnet inflation
• A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems

Cited by

• The implications of inflation for the last ACT

Related

• LQC inverse volume corrections inflation driven by fractional power law potentials in light of ACT observations
• The probability of inflation in Loop Quantum Cosmology
• Perturbations in loop quantum cosmology
• Observational imprints from Loop Quantum Cosmology
• The Dynamics of Reheating in Loop Quantum Cosmology