The model-independent degeneracy-breaking point in cosmological models with interacting Dark Energy and Dark Matter

2019/08/17 by Zhimin Zhou, Zhou, Z., T. J. Zhang +3
Physics and Astronomy · Economics, Econometrics and Finance · #Cosmology and Gravitation Theories #Stochastic processes and financial applications #Black Holes and Theoretical Physics

paper · pdf · doi:10.48550/arxiv.1908.06254

Abstract

We study cosmological models with interaction between dark energy (DE) and dark matter (DM). For the interaction term Q in cosmic evolution equations, there is a model-independent degeneracy-breaking (D-B) point when Q₁ (a part of Q) equals to zero, where the interaction can be probed without degeneracy between the constant DE equation of state (EoS).

Citations

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

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