Abstract The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good
description of a wide range of astrophysical and cosmological data. However, there are a …

A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

The observation of electromagnetic radiation from radio to γ-ray wavelengths has provided a
wealth of information about the Universe. However, at PeV (10 15 eV) energies and above …

We review the landscape of QCD axion models. Theoretical constructions that extend the
window for the axion mass and couplings beyond conventional regions are highlighted and …

Gravitational wave (GW) detection in space probes the GW spectrum that is inaccessible
from the Earth. In addition to the LISA project led by the European Space Agency, and the …

Gravitational waves can provide an accurate measurement of the luminosity distance to the
source but cannot provide the source redshift unless the degeneracy between mass and …

Deriving the expansion history of the Universe is a major goal of modern cosmology. To
date, the most accurate measurements have been obtained with Type Ia Supernovae (SNe) …

Most of the free parameters in the Standard Model (SM)—a quantum field theory which has
successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all …

With the first direct detection of gravitational waves, the advanced laser interferometer
gravitational-wave observatory (LIGO) has initiated a new field of astronomy by providing an …

We review the effective field theory (EFT) approach to gravitational dynamics. We focus on
extended objects in long-wavelength backgrounds and gravitational wave emission from …