https://doi.org/10.1140/epjc/s10052-025-15157-y
Regular Article - Theoretical Physics
Inflation from entropy
Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, 225009, Yangzhou, China
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Received:
20
October
2025
Accepted:
2
December
2025
Published online:
18
December
2025
Abstract
We investigate cosmological solutions for the modified gravity theory obtained from quantum relative entropy between the metric of spacetime and the metric induced by the geometry and matter fields. The vacuum equations admit inflationary solutions, hinting at an entropic origin for inflation. Equations also admit a regime of phantom like behavior. Assuming that the relation between slow roll parameters and CMB observables holds for “gravity from entropy”, the theory predicts a viable spectrum.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjc/s10052-025-15157-y.
© The Author(s) 2025
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