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 …

A bstract We critically examine the magnitude of theoretical uncertainties in perturbative
calculations of fist-order phase transitions, using the Standard Model effective field theory as …

Classically conformal Standard Model extensions predict an intriguing thermal history of the
early Universe. In contrast to the common paradigm, the onset of the electroweak phase …

This book provides a remarkable and complete survey of important questions at the interface
between theoretical particle physics and cosmology. After discussing the theoretical and …

A bstract Strongly-coupled theories at the TeV can naturally drive a long period of
supercooling in the early universe. Trapped into the deconfined phase, the universe could …

A bstract A strongly-coupled sector can feature a supercooled confinement transition in the
early universe. We point out that, when fundamental quanta of the strong sector are swept …

With entropy injection, an early matter-dominated epoch (EMD) impels the axion decay
constant fa toward larger values to produce correct axion dark matter (DM) abundance …

A bstract In this paper we explore the possibility of observable gravitational waves as a
manifestation of the QCD axion dynamics. In particular, we focus on dynamical axion models …

Beyond-Standard-Model extensions of QCD could result in quark and gluon confinement
occurring well above at temperature around the GeV scale. These models can also alter the …

We explore a simple model which naturally explains the observed baryon asymmetry of the
Universe. In this model the strong coupling is promoted to a dynamical quantity, which …