Quantum mechanics

Theoretical physics

Anisotropy

COSMIC cancer database

Philosophy

Cosmology

Gravitation

Astrophysics

Classical mechanics

Statistical physics

Dark energy

Cosmological constant

Physics

Epistemology

Phenomenology (philosophy)

Cosmological principle

Cosmic microwave background

Physical cosmology

Hubble's law

Lambda-CDM model

Physical review. D/Physical review. D.

We present the data-driven reconstruction of gravitational theories and Dark Energy models on cosmological scales. We showcase the power of present cosmological probes at constraining these models and quantify the knowledge of their properties that can be acquired through state of the art data. This reconstruction exploits the power of the Effective Field Theory approach to Dark Energy and Modified Gravity phenomenology, which compresses the freedom in defining such models into a finite set of functions that can be reconstructed across cosmic times using cosmological data. We consider several model classes described within this framework and thoroughly discuss their phenomenology and data implications. We find that some models can alleviate the present discrepancy in the determination of the Hubble constant as inferred from the cosmic microwave background and as directly measured. This results in a statistically significant preference for the reconstructed theories over the standard cosmological model.

Reconstructing gravity on cosmological scales