Progress in Einstein-Cartan gravity
Mikhail Shaposhnikov
TL;DR
This paper reviews the development of Einstein-Cartan gravity, emphasizing its Weyl-invariant form and applications in particle physics and cosmology, including inflation and the strong CP problem.
Contribution
It introduces a Weyl-invariant version of Einstein-Cartan gravity and explores its potential applications in modern physics.
Findings
Weyl-invariant Einstein-Cartan gravity constructed
Applications in inflationary cosmology discussed
Potential solutions to the strong CP problem explored
Abstract
It is well-known that the gravitational force can be obtained by gauging the Lorentz group, which puts gravity on the same footing as the Standard Model fields. The resulting theory - Einstein-Cartan gravity - has several crucial advantages. I will overview the construction of the Weyl-invariant version of this theory and discuss its applications in particle physics and cosmology, in particular for inflation and the strong CP problem.
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Taxonomy
TopicsCosmology and Gravitation Theories · Relativity and Gravitational Theory · Geophysics and Gravity Measurements