Alternative Gravities and Fundamental Cosmology - ALTECOSMOFUN'21 [VIRTUAL]

Progress within the Scale Invariant Vacuum (SIV) Paradigm

9 Sept 2021, 17:10

20m

Talk/seminar Regular Sessions

Speaker

Dr Vesselin Gueorguiev (Institute for Advanced Physical Studies (IAPS), Sofia, Bulgaria)

Description

We will review the Scale Invariant Vacuum idea as related to Weyl Integrable Geometry. Main results related to SIV and inflation 1, the growth of the density fluctuations 2, and application of the SIV to scale-invariant dynamics of Galaxies, MOND, Dark Matter, and the Dwarf Spheroidals 3 will be summarized. If time permits, a potential connection of the weak field SIV results to the un-proper time parametrization within the reparametrization paradigm, will be discussed as well 4.

1 Maeder, A., Gueorguiev, V. G., Scale invariance, horizons, and inflation. MNRAS 504, 4005 (2021). arXiv: 2104.09314 [gr-qc].

2 Maeder, A., Gueorguiev, V., G., The growth of the density fluctuations in the scale-invariant vacuum theory, Phys. Dark Univ. 25, 100315 (2019). arXiv: 1811.03495 [astro-ph.CO]

3 Maeder, A.; Gueorguiev, V.G. Scale-invariant dynamics of galaxies, MOND, dark matter, and the dwarf spheroidals, MNRAS 492, 2698 (2019). arXiv: 2001.04978 [gr-qc]

4 Gueorguiev, V. G., Maeder, A., Geometric Justification of the Fundamental Interaction Fields for the Classical Long-Range Forces. Symmetry 13, 379 (2021). arXiv: 1907.05248 [math-ph].

Presentation materials

VGG_AlteCosmoFun'21-handout.pdf