Hubble Tension: The Evidence of New Physics
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Abstract
The ΛCDM model provides a good fit to most astronomical observations but harbors large areas of phenomenology and ignorance. With the improvements in the precision and number of observations, discrepancies between key cosmological parameters of this model have emerged. Among them, the most notable tension is the 4σ to 6σ deviation between the Hubble constant (H0) estimations measured by the local distance ladder and the cosmic microwave background (CMB) measurement. In this review, we revisit the H0 tension based on the latest research and sort out evidence from solutions to this tension that might imply new physics beyond the ΛCDM model. The evidence leans more towards modifying the late-time universe.
Citation impact
232
total citations
- FWCI
- 39.70
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- 100%
- References
- 616
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Authors
2Topics & keywords
Topics
Keywords
- Physics
- Cosmic microwave background
- Hubble's law
- Phenomenology (philosophy)
- Cosmology
- Cosmic background radiation
- Tension (geology)
- Theoretical physics
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