Bin Hu

TL;DR: There is a persistent interest in extending cosmology beyond the standard model, ΛCDM, motivated by a range of apparently serious theoretical issues, involving such questions as the cosmological constant problem, the particle nature of dark matter, the validity of general relativity on large scales, the existence of anomalies in the CMB and on small scales, and the predictivity and testability of the inflationary paradigm as mentioned in this paper.

TL;DR: There is a persistent interest in extending cosmology beyond the standard model, $\Lambda$CDM as discussed by the authors, motivated by a range of apparently serious theoretical issues, involving such questions as the cosmological constant problem, the particle nature of dark matter, the validity of general relativity on large scales, the existence of anomalies in the CMB and on small scales, and the predictivity and testability of the inflationary paradigm.

TL;DR: EFTCAMB as mentioned in this paper is an effective field theory (EFT) approach to dark energy and modified gravity in the public Einstein-Boltzmann solver CAMB.

TL;DR: The requirements for a future CMB polarisation survey addressing these scientific objectives are listed, and the design drivers of the COREmfive space mission proposed to ESA in answer to the "M5" call for a medium-sized mission are discussed.

TL;DR: The authors introduce EFTCAMB/EFTCosmoMC as publicly available patches to the commonly used camb/CosmoMC codes, and obtain constraints on parametrized pure effective field theory and designer $f(R)$ models.