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Science with the space-based interferometer LISA. IV: probing inflation with gravitational waves

- N. Bartolo, C. Caprini, +11 authors G. Tasinato
- Physics
- 20 October 2016

We investigate the potential for the LISA space-based interferometer to detect the stochastic gravitational wave background produced from different mechanisms during inflation. Focusing on… Expand

Weakly-coupled IIA flux compactifications

- Eran Palti, G. Tasinato, J. Ward
- Physics
- 8 April 2008

We study compactifications of type IIA string theory on Calabi-Yau manifolds that are mirror to a subset of the type IIB LARGE-volume models. A combination of flux, α' corrections and… Expand

Cosmic acceleration from Abelian symmetry breaking

- G. Tasinato
- Physics
- 26 February 2014

A bstractWe discuss a consistent theory for a self-interacting vector field, breaking an Abelian symmetry in such a way to obtain an interesting behavior for its longitudinal polarization. In an… Expand

Lifshitz solutions in supergravity and string theory

- R. Gregory, S. Parameswaran, G. Tasinato, I. Zavala
- Physics
- 17 September 2010

We derive Lifshitz configurations in string theory for general dynamical exponents z ≥ 1. We begin by obtaining simple Li × Ω solutions to supergravities in diverse dimensions, with Ω a compact… Expand

Cosmology of bigravity with doubly coupled matter

- D. Comelli, M. Crisostomi, K. Koyama, L. Pilo, G. Tasinato
- Physics
- 5 January 2015

We study cosmology in the bigravity formulation of the dRGT model where matter couples to both metrics. At linear order in perturbation theory two mass scales emerge: an hard one from the dRGT… Expand

Warped brane worlds in six dimensional supergravity

- Y. Aghababaie, C. Burgess, +5 authors I. Zavala
- Physics
- 8 August 2003

We present warped compactification solutions of six-dimensional su- pergravity, which are generalizations of the Randall-Sundrum (RS) warped brane world to codimension two and to a supersymmetric… Expand

Scale dependence of local fNL

- C. Byrnes, S. Nurmi, G. Tasinato, D. Wands
- Physics
- 16 November 2009

We consider possible scale-dependence of the non-linearity parameter fNL in local and quasi-local models of non-Gaussian primordial density perturbations. In the simplest model where the primordial… Expand

A pr 2 01 1 Strong interactions and exact solutions in non-linear massive gravity

- K. Koyama, Gustavo Niz, G. Tasinato
- 2011

We investigate strong coupling effects in a covariant massive gravity model, which is a candidate for a ghost-free non-linear completion of Fierz-Pauli. We analyse the conditions to recover general… Expand

Towards Minkowski vacua in type II string compactifications

- A. Micu, Eran Palti, G. Tasinato
- Physics
- 18 January 2007

We study the vacuum structure of compactifications of type II string theories on orientifolds with SU(3) × SU(3) structure. We argue that generalised geometry enables us to treat these non-geometric… Expand

Degenerate higher order scalar-tensor theories beyond Horndeski up to cubic order

- J. B. Achour, M. Crisostomi, K. Koyama, D. Langlois, K. Noui, G. Tasinato
- Physics
- 29 August 2016

A bstractWe present all scalar-tensor Lagrangians that are cubic in second derivatives of a scalar field, and that are degenerate, hence avoiding Ostrogradsky instabilities. Thanks to the existence… Expand

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