After a decade and a half of research motivated by the accelerating universe, theory and
experiment have reached a certain level of maturity. The development of theoretical models …

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 …

A bstract We develop an effective field theory for dissipative fluids which governs the
dynamics of long-lived gapless modes associated with conserved quantities. The resulting …

We develop a cosmological model where primordial inflation is driven by asolid', defined as
a system of three derivatively coupled scalar fields obeying certain symmetries and …

We consider the low-energy effective field theory describing the infrared dynamics of
nondissipative fluids. We extend previous work to accommodate conserved charges, and we …

A bstract We classify condensed matter systems in terms of the spacetime symmetries they
spontaneously break. In particular, we characterize condensed matter itself as any state in a …

We set up a general framework for systematically building and classifying, in the linear
regime, causal and stable dissipative hydrodynamic theories that, alongside with the usual …

A bstract Coleman's theorem states that continuous internal symmetries cannot be
spontaneously broken in two-dimensional quantum field theories (QFTs). In this work we …

A bstract In this paper we further develop the fluctuating hydrodynamics proposed in [1] in a
number of ways. We first work out in detail the classical limit of the hydrodynamical action …

We use linear response techniques to develop the previously proposed relativistic ideal fluid
limit with a non-negligible spin density. We confirm previous results [D. Montenegro, Phys …