Zobrazeno 1 - 10
of 17 217
pro vyhledávání: '"dark matter and dark energy"'
Publikováno v:
JCAP 11 (2024) 034
We study the evolution of $k=-1$ FLRW cosmological models for two interacting Dark Matter-Dark Energy Models using dynamical system analysis. Since we are interested in late time evolution, the sign of the interaction term is chosen such that it faci
Externí odkaz:
http://arxiv.org/abs/2410.02261
Autor:
Trugenberger, Carlo A.
Publikováno v:
Class. Quant. Gravity (2024)
We point out that dark matter and dark energy arise naturally in a recently proposed model of combinatorial quantum gravity. Dark energy is due to the ground-state curvature at finite coupling, dark matter arises from allotropy in the discrete struct
Externí odkaz:
http://arxiv.org/abs/2409.09385
Autor:
Chen, Da-Ming, Wang, Lin
Publikováno v:
Universe 2024, 10, 333
The spin-torsion theory is a gauge theory approach to gravity that expands upon Einstein's general relativity (GR) by incorporating the spin of microparticles. In this study, we further develop the spin-torsion theory to examine spherically symmetric
Externí odkaz:
http://arxiv.org/abs/2409.02954
Autor:
Aboubrahim, Amin, Nath, Pran
The description of dark matter as a pressure-less fluid and of dark energy as a cosmological constant, both minimally coupled to gravity, constitutes the basis of the concordance $\Lambda\text{CDM}$ model. However, the concordance model is based on u
Externí odkaz:
http://arxiv.org/abs/2406.19284
Autor:
Hertzberg, Mark P., Loeb, Abraham
Publikováno v:
JCAP 09 (2024) 046
We analyze consequences of trying to replace dark matter and dark energy with models of stochastic spacetime. In particular, we analyze the model put forth by Ref. [1], in which it is claimed that ``post-quantum classical gravity" (PQCG), a stochasti
Externí odkaz:
http://arxiv.org/abs/2404.13037