Testing $\Lambda$-Free f(Q) Cosmology

Abstract

We study a model of Symmetric Teleparallel gravity that is able to account for the current accelerated expansion of the universe without the need for dark energy component. We investigate this model by making use of dynamical system analysis techniques to identify the regions of the parameter space with viable cosmologies and constrain it using type Ia supernova (SnIa), cosmic microwave background (CMB) data and make forecasts using standard siren (SS) events. We conclude that this model is disfavored with respect to $\Lambda$CDM and forthcoming standard siren events can be decisive in testing the viability of the model.

arXiv comment9 pages, 3 figures, version 2 revision

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Cited by in corpus (13)

• Data reconstruction of the dynamical connection function in $f(Q)$ cosmology
• Testing Non-Coincident $f(Q)$-gravity with DESI DR2 BAO and GRBs
• Observational test for $f(Q)$ gravity with weak gravitational lensing
• Exploring the stability of $f(Q)$ cosmology near general relativity limit with different connections
• Gravitational tensor and scalar modes in $f(Q,B)$ non-metric gravity
• Unexplored regions in teleparallel $f(T)$ gravity: Sign-changing dark energy density
• Cosmological study of a symmetric teleparallel gravity model
• Cosmological dynamics and observational constraints on a viable $f(Q)$ non-metric gravity model
• Modified Teleparallel $f(T)$ Gravity, DESI BAO and the $H_0$ Tension
• Gravitational wave probes of Barrow cosmology with LISA standard sirens
• Modified $f(R,T)$ theory in light of gravitational wave standard sirens
• Relativistic stars in $f(Q)$-gravity: Exact analytic solution for the power-law case $f(Q)=Q+b{Q}^{\nu }$
• Can an Extra Degree of Freedom in Scalar-Tensor Non-Metricity Gravity Account for the Evolution of the Universe?