Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy
We reveal a novel aspect of scale-invariant actions that allow matter to couple with a dilaton field: The dynamics of the dilaton can induce variations in the Planck constant ħ and speed of light c. Our mechanism for generating variable ħ and c in curved spacetimes via the dilaton offers a viable alternative account for late-time cosmic acceleration, bypassing the need for dark energy.
Authors
- Hoang Ky Nguyen (ORCID: https://orcid.org/0000-0003-2343-0508)
Publication Details
- Journal
- Physics Letters B
- Published
- 2025-02-26
- DOI
- https://doi.org/10.1016/j.physletb.2025.139357
- Citations
- 3
- Primary Topic
- Advanced Thermodynamics and Statistical Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 3.97