Constraints on interacting dynamical dark energy and a new test for $$\Lambda $$ Λ CDM
In: European Physical Journal C: Particles and Fields, Jg. 79 (2019), Heft 8, S. 1-8
Online
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Zugriff:
We consider a generic description of interacting dynamical Dark Energy, characterized by an equation of state with a time dependent coefficient $w(t)$, and which may interact with both radiation and matter. Without referring to any particular cosmological model, we find a differential equation which must be satisfied by $w(t)$ and involving the function $Q(t)$ which describes the interaction between Dark Energy and the other cosmological fluids. The relation we find represents a constraint for various models of interacting dynamical Dark Energy. In addition, an observable is proposed, depending on kinematic variables and on density parameters, which may serve as a new test for $\Lambda$CDM.
Comment: final version, published on EPJC
| Titel: |
Constraints on interacting dynamical dark energy and a new test for $$\Lambda $$ Λ CDM
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| Autor/in / Beteiligte Person: | Maggiore, Nicola ; Bonici, Marco |
| Link: | |
| Zeitschrift: | European Physical Journal C: Particles and Fields, Jg. 79 (2019), Heft 8, S. 1-8 |
| Veröffentlichung: | SpringerOpen, 2019 |
| Medientyp: | unknown |
| ISSN: | 1434-6052 (print) ; 1434-6044 (print) |
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