Reparametrization Invariant Scaling Symmetry and the Value of the Einstein Cosmological Constant ΛE
Year: 2024
Type: conference-paper
Abstract: The nature of Dark Energy (DE) remains an enigma. This work explores the non-zero Einstein Cosmological Constant (Λ E ) as a manifestation of DE – viewing it through the lens of Reparametrization Invariant Scaling Symmetry (RISS), where Λ E is interpreted as a “kinetic energy” term within the energy density. The scale factor λ(t) relevant for cosmic reparametrization removes Λ E from the extended Einstein GR, its defining equations, and their relations to Λ E are derived. The value for Λ E = 1.8 × 10−52 m−2 is consistent with the current observations for Λ E . The current approach avoids the puzzles associated with interpreting Λ E as vacuum zero-point energy (often called dark energy). Further applications are related to the Dark Matter problem by insisting on a reparametrization symmetry for the equations of motion, where un-proper (non-co-moving) time parametrization gives rise to fictitious forces.
Author: Vesselin G. Gueorguiev
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4405537701