Improved constraint on primordial gravitational waves in light of the Hubble tension and BICEP/Keck

Abstract

The Hubble tension that the standard $\Lambda$CDM model is suffering from can be resolved with pre-recombination early dark energy. We present the first constraint on the tensor-to-scalar ratio $r$ in corresponding Hubble-tension-free cosmologies using the most recent BICEP/Keck cosmic microwave background (CMB) B-mode polarization data. We find, combining BICEP/Keck with Planck18 CMB and baryon acoustic oscillation data, that the models with larger Hubble constant $H_0$ will have tighter upper bound on $r$, and resolution $H_0\sim 73$ km/s/Mpc of the Hubble tension tightens the upper bound to $r<0.028(95\%\text{C.L.})$, $25\%$ tighter than the $\Lambda$CDM constraint $r<0.036$. We clarify the origin of this tightening bound.

arXiv comment19 pages, 10 figures

References in corpus (58)

• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• 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
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• The Simons Observatory: Science goals and forecasts
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Planck 2018 results. V. CMB power spectra and likelihoods
• Early Dark Energy Can Resolve The Hubble Tension
• Signature of Gravity Waves in Polarization of the Microwave Background
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Challenges for $\Lambda$CDM: An update
• A Probe of Primordial Gravity Waves and Vorticity
• Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code
• Planck 2018 results. VIII. Gravitational lensing
• Measurements of the Hubble Constant: Tensions in Perspective
• On the Hubble constant tension in the SNe Ia Pantheon sample
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• Early Dark Energy Does Not Restore Cosmological Concordance
• The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz
• To H0 or not to H0?
• Improved limits on the tensor-to-scalar ratio using BICEP and Planck
• Early dark energy from massive neutrinos -- a natural resolution of the Hubble tension
• Acoustic Dark Energy: Potential Conversion of the Hubble Tension
• Constraining Early Dark Energy with Large-Scale Structure
• Measuring Polarization In Cosmic Microwave Background
• Is the Hubble tension a hint of AdS phase around recombination?
• On the evolution of the Hubble constant with the SNe Ia Pantheon Sample and Baryon Acoustic Oscillations: a feasibility study for GRB-cosmology in 2030
• New Early Dark Energy
• On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference
• Consistency tests of $\Lambda$CDM from the early integrated Sachs-Wolfe effect: Implications for early-time new physics and the Hubble tension
• The Hubble Tension in Light of the Full-Shape Analysis of Large-Scale Structure Data
• KiDS+VIKING-450 and DES-Y1 combined: Mitigating baryon feedback uncertainty with COSEBIs
• The Atacama Cosmology Telescope: Constraints on Pre-Recombination Early Dark Energy
• Unified framework for Early Dark Energy from $\alpha$-attractors
• New constraint on Early Dark Energy from Planck and BOSS data using the profile likelihood
• Axion-Dilaton Destabilization and the Hubble Tension
• Dark Energy at early times and ACT: a larger Hubble constant without late-time priors
• Measurements of B-mode Polarization of the Cosmic Microwave Background from 500 Square Degrees of SPTpol Data
• Implication of the Hubble tension for the primordial Universe in light of recent cosmological data
• Recombination-independent determination of the sound horizon and the Hubble constant from BAO
• $Euclid$ preparation: XV. Forecasting cosmological constraints for the $Euclid$ and CMB joint analysis
• Combined analysis of Planck and SPTPol data favors the early dark energy models
• $T_0$ censorship of early dark energy and AdS vacua
• Hybrid cosmological attractors
• The Early Dark Sector, the Hubble Tension, and the Swampland
• Testing AdS early dark energy with Planck, SPTpol and LSS data
• Inference of the optical depth to reionization from low multipole temperature and polarisation Planck data
• Dark Energy, $H_0$ and Weak Gravity Conjecture
• Did the Universe Experienced a Pressure non-Crushing Type Cosmological Singularity in the Recent Past?
• Very Hairy Inflation
• Exploring Early Dark Energy solution to the Hubble tension with Planck and SPTPol data
• Constraints on Pre-Recombination Early Dark Energy from SPT-3G Public Data
• Cosmological implications of $n_s\approx 1$ in light of the Hubble tension
• Testing dark energy after pre-recombination early dark energy
• Cosmological bound on neutrino masses in the light of $H_0$ tension

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• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• Inflationary interpretation of the stochastic gravitational wave background signal detected by pulsar timing array experiments
• Towards hybrid inflation with $n_s=1$ in light of Hubble tension and primordial gravitational waves
• Inflation, the Hubble Tension and Early Dark Energy: an alternative overview
• Early Dark Energy with Power-law F(R) Gravity
• Impact of the Hubble tension on the $r$-$n_s$ contour
• Testing the $n_s-H_0$ scaling relation with Planck-independent CMB data
• Reconciling early dark energy with a Harrison-Zeldovich spectrum
• Testing scale-invariant inflation against cosmological data
• Does the fraction of dark matter diminish with early dark energy?