The microscopic quantum nature of elementary particles, chirality, leads to macroscopic
phenomena like the chiral anomaly, chiral magnetic effect, and chiral plasma instability. We …

A bstract A new era of exploring the early Universe may have begun with the recent strong
evidence for the stochastic gravitational wave (GW) background from the data reported by …

We study the nonlinear dynamics of axion inflation, capturing for the first time the
inhomogeneity and full dynamical range during strong backreaction, till the end of inflation …

We study the explosive production of gauge fields during axion inflation in a novel gradient
expansion formalism that describes the time evolution of a set of bilinear electromagnetic …

We study gravitational wave production from gauge preheating in a variety of inflationary
models, detailing its dependence on both the energy scale and the shape of the potential …

We discuss how tensor polarizations of gravitational waves can suffer Landau damping in
the presence of velocity birefringence, when parity symmetry is explicitly broken. In …

We study the dual production of helical Abelian gauge fields and chiral fermions through the
Chern-Simons (CS) coupling with a pseudo-scalar inflaton in the presence of a chiral …

Axion inflation, ie an axion-like inflaton coupled to an Abelian gauge field through a Chern-
Simons interaction, comes with a rich and testable phenomenology. This is particularly true …

A bstract CP violation and the violation of baryon-minus-lepton number B− L do not
necessarily have to occur simultaneously in order to accomplish successful leptogenesis …

We present a lattice formulation of an interaction ϕ/Λ F̃ F between an axion and some U (1)
gauge sector with the following properties: it reproduces the continuum theory up to Script O …