Skip to search formSkip to main contentSkip to account menu

Effective holographic theories for low-temperature condensed matter systems

The IR dynamics of effective holographic theories capturing the interplay between charge density and the leading relevant scalar operator at strong coupling are analyzed. Such theories are…
View on Springer (opens in a new tab)

Dressing a black hole with a time-dependent Galileon

A bstractWe present a class of exact scalar-tensor black holes for a shift-symmetric part of the Horndeski action. The action includes a higher order scalar tensor interaction term. We find that for…
View on Springer (opens in a new tab)

Strong coupling in Horava gravity

By studying perturbations about the vacuum, we show that Horava gravity suffers from two different strong coupling problems, extending all the way into the deep infra-red. The first of these is…
View PDF on arXiv (opens in a new tab)

Asymptotically flat black holes in Horndeski theory and beyond

We find spherically symmetric and static black holes in shift-symmetric Horndeski and beyond Horndeski theories. They are asymptotically flat and sourced by a non trivial static scalar field. The…
View on IOP Publishing (opens in a new tab)

Shaping black holes with free fields

A bstractStarting from a metric Ansatz permitting a weak version of Birkhoff’s theorem we find static black hole solutions including matter in the form of free scalar and p-form fields, with and…
View on Springer (opens in a new tab)

Self-tuning and the derivation of a class of scalar-tensor theories

We have recently proposed a special class of scalar tensor theories known as the Fab Four. These arose from attempts to analyse the cosmological constant problem within the context of Horndeski's…
View via Publisher (opens in a new tab)

Beyond Lovelock gravity: higher derivative metric theories

We consider theories describing the dynamics of a four-dimensional metric, whose Lagrangian is diffeomorphism invariant and depends at most on second derivatives of the metric. Imposing degeneracy…
View PDF on arXiv (opens in a new tab)

General Gauss-Bonnet brane cosmology

We consider five-dimensional spacetimes of constant three-dimensional spatial curvature in the presence of a bulk cosmological constant. We find the general solution of such a configuration in the…
View PDF on arXiv (opens in a new tab)

General second order scalar-tensor theory, self tuning, and the Fab Four

Starting from the most general scalar-tensor theory with second order field equations in four dimensions, we establish the unique action that will allow for the existence of a consistent self-tuning…
View PDF on arXiv (opens in a new tab)

Charged Galileon black holes

We consider an Abelian gauge field coupled to a particular truncation of Horndeski theory. The Galileon field has translation symmetry and couples non minimally both to the metric and the gauge…
View on IOP Publishing (opens in a new tab)
...
By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy Policy (opens in a new tab), Terms of Service (opens in a new tab), and Dataset License (opens in a new tab)