Review article
Physics and astronomy
Gravity and unification: hints from microphysics and cosmology
DOI: https://doi.org/10.61109/cs.202504.146
Coshare Science 03, 02 | Published 15 April 2025 |
Cite this article
Copy
K.S. Stelle, Gravity and unification: hints from microphysics and cosmology, Coshare Science 03, 02 (2025).
Abstract

Elementary Particle Physics and General Relativity relate respectively to the very small and the very large. But they are both essential in trying to understand the structure of the universe, especially at the very first instants. Some of the key ideas involved in this juncture of the very small and the very large are illustrated.

Keywords
elementary particle physics
general relativity
extra spacetime dimensions
gravity waves
the universe as a membrane
Particle Physics
watch this part

Einstein's general relativity
watch this part

Flying carpet universes
watch this part

The unification of fundamental interactions
watch this part

Declarations
The author declares no competing interests.
References

1. T. Kaluza, Zum unitätsproblem der physik, Sitzungsber. Preuss. Akad. Wiss. Berlin (Math. Phys.) 1921, 966 (1921).
2. O. Klein, Quantentheorie und fünfdimensionale relativitätstheorie, Z. Phys. 37, 895 (1926).
3. W.P. Jr., Zur quantenmechanik des magnetischen elektrons, Z. Phys. 43, 601 (1927).
4. J.K. Webb, M.T. Murphy, V.V. Flambaum, V.A. Dzuba, J.D. Barrow, C.W. Churchill, J.X. Prochaska, and A.M. Wolfe, Further evidence for cosmological evolution of the fine structure constant, Phys. Rev. Lett. 87, 091301 (2001).

Rights and permissions
Open Access This video article (including but not limited to the video presentation, related slides, images and text manuscript) is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Comments
Comment