A possible solution to the Hubble tension from quantum gravity

Abstract

We investigate the relevance of quantum gravity during inflation to address the Hubble tension that arises from Planck 2018 and SH0ES data sets. We show that the effect of quantum gravity during inflation can increase the rate of change of $H_0$, thereby accounting for a wide range of observed $H_0$. Further, we show that due to the quantum gravity effect on inflation, the temperature at the onset of reheating can be lower than the standard case, causing delays in the reheating process. The role of quantum gravity is inevitable in settling the Hubble tension. The results of the present study may find use in resolving the Hubble tension, in validating inflationary model and quantum gravity.

arXiv commentA new paragraph is added in the introduction part and fig. 7 is replaced with a new one. 19 pages, 10 figures

References in corpus (31)

• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• In the Realm of the Hubble tension $-$ a Review of Solutions
• Towards the Theory of Reheating After Inflation
• Hybrid Inflation
• Encyclopaedia Inflationaris
• What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
• MeV-scale Reheating Temperature and Thermalization of Neutrino Background
• Cosmological Constraints on Late-time Entropy Production
• Instant Preheating
• Cosmological implications of ultra-light axion-like fields
• Is the Observable Universe Consistent with the Cosmological Principle?
• Cosmic clocks, cosmic variance and cosmic averages
• The effective field theory treatment of quantum gravity
• Preheating in Hybrid Inflation
• The Hubble Tension Revisited: Additional Local Distance Ladder Uncertainties
• $f(R)$ gravity in the Jordan Frame as a Paradigm for the Hubble Tension
• On the waterfall behavior in hybrid inflation
• Integral $F(R)$ Gravity and Saddle Point Condition as a Remedy for the $H_0$-tension
• Effective theory for quantum gravity
• Cosmological foundations revisited with Pantheon+
• Using Gray Sirens to Resolve the Hubble-Lemaître Tension
• Reheating constraints on Tachyon Inflation
• Gravitational Waves from Preheating in Gauss-Bonnet Inflation
• Excursion into Quantum Gravity via Inflation
• $H_0$ Tension on the Light of Supermassive Black Hole Shadows Data
• Cosmic structure, averaging and dark energy
• The Hubble Rate Trouble: An Effective Field Theory of Dark Matter
• The Ellipsoidal Universe and the Hubble tension
• Hubble tension and Reheating: Hybrid Inflation Implications
• Preheating and Reheating after Standard Inflation
• Tachyonic Preheating and Spontaneous Symmetry Breaking

Cited by in corpus (1)

• Unraveling the Hubble tension with warm inflation