1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- ETH ZurichCH96 papers
- Tokyo University of ScienceJP12 papers
- KTH Royal Institute of TechnologySE10 papers
- McGill UniversityCA10 papers
- Stockholm UniversitySE10 papers
- Centre National de la Recherche ScientifiqueFR9 papers
- Nordic Institute for Theoretical PhysicsSE8 papers
- Universidad Autónoma de MadridES7 papers
- Aix-Marseille UniversitéFR6 papers
- Heidelberg UniversityDE6 papers
- Instituto de Física TeóricaES6 papers
- Kyoto UniversityJP6 papers
22 papers · 1 filter
Black Hole Ringdown as a Probe for Dark Energy
Johannes Noller, Luca Santoni, Enrico Trincherini +1
Under the assumption that a dynamical scalar field is responsible for the current acceleration of the Universe, we explore the possibility of probing its physics in black hole merg…
Scale independent inflation
Pedro G. Ferreira, Christopher T. Hill, Johannes Noller +1
Weyl (scale) invariant theories of scalars and gravity can generate all mass scales spontaneously. In this paper we study a particularly simple version -- scale invariant gra…
The canonical frame of purified gravity
Jose Beltrán Jiménez, Lavinia Heisenberg, Tomi S. Koivisto
In the recently introduced gauge theory of translations, dubbed Coincident General Relativity, gravity is described with neither torsion nor curvature in the spacetime affine geome…
A systematic approach to generalisations of General Relativity and their cosmological implications
Lavinia Heisenberg
A century ago, Einstein formulated his elegant and elaborate theory of General Relativity, which has so far withstood a multitude of empirical tests with remarkable success. Notwit…
Gauge-ready formulation of cosmological perturbations in scalar-vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
In scalar-vector-tensor (SVT) theories with parity invariance, we perform a gauge-ready formulation of cosmological perturbations on the flat Friedmann-Lemaître-Robertson-Walker (F…
Non-trivial gravitational waves and structure formation phenomenology from dark energy
Jose Beltran Jimenez, Lavinia Heisenberg
The detection of the GW170817/GRB170817A event improved the constraints on the propagation speed of gravitational waves, thus placing possible variations caused by dark energy unde…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Cosmology in scalar-vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
We study the cosmology on the Friedmann-Lemaitre-Robertson-Walker background in scalar-vector-tensor theories with a broken gauge symmetry. For parity-invariant interactions…
Odd-parity stability of hairy black holes in gauge-invariant scalar-vector-tensor theories
Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa
In scalar-vector-tensor theories with gauge invariance, it was recently shown that there exists a new type of hairy black hole (BH) solutions induced by a cubic-order scalar…
Teleparallel Palatini theories
Jose Beltran Jimenez, Lavinia Heisenberg, Tomi Koivisto
The Palatini formalism is developed for gravitational theories in flat geometries. We focus on two particularly interesting scenarios. First, we fix the connection to be metric com…
Hairy black hole solutions in gauge-invariant scalar-vector-tensor theories
Lavinia Heisenberg, Shinji Tsujikawa
In gauge-invariant scalar-vector-tensor theories with second-order equations of motion, we study the properties of black holes (BH) on a static and spherically symmetric bac…
A general theory of linear cosmological perturbations: stability conditions, the quasistatic limit and dynamics
Macarena Lagos, Emilio Bellini, Johannes Noller +2
We analyse cosmological perturbations around a homogeneous and isotropic background for scalar-tensor, vector-tensor and bimetric theories of gravity. Building on previous results,…
Dark energy survivals in massive gravity after GW170817: SO(3) invariant
Lavinia Heisenberg, Shinji Tsujikawa
The recent detection of the gravitational wave signal GW170817 together with an electromagnetic counterpart GRB 170817A from the merger of two neutron stars puts a stringent bound…
Coincident General Relativity
Jose Beltran Jimenez, Lavinia Heisenberg, Tomi Koivisto
The metric-affine variational principle is applied to generate teleparallel and symmetric teleparallel theories of gravity. From the latter is discovered an exceptional class which…
Born-Infeld inspired modifications of gravity
Jose Beltran Jimenez, Lavinia Heisenberg, Gonzalo J. Olmo +1
General Relativity has shown an outstanding observational success in the scales where it has been directly tested. However, modifications have been intensively explored in the regi…
Hairy black-hole solutions in generalized Proca theories
Lavinia Heisenberg, Ryotaro Kase, Masato Minamitsuji +1
We present a family of exact black-hole solutions on a static spherically symmetric background in second-order generalized Proca theories with derivative vector-field interactions…
Dipolar Dark Matter as an Effective Field Theory
Luc Blanchet, Lavinia Heisenberg
Dipolar Dark Matter (DDM) is an alternative model motivated by the challenges faced by the standard cold dark matter model to describe the right phenomenology at galactic scales. A…
Effective gravitational couplings for cosmological perturbations in generalized Proca theories
Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase +3
We consider the finite interactions of the generalized Proca theory including the sixth-order Lagrangian and derive the full linear perturbation equations of motion on the flat Fri…
Cosmology in massive gravity with effective composite metric
Lavinia Heisenberg, Alexandre Refregier
This paper is dedicated to scrutinizing the cosmology in massive gravity. A matter field of the dark sector is coupled to an effective composite metric while a standard matter fiel…
Cosmology in generalized Proca theories
Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase +3
We consider a massive vector field with derivative interactions that propagates only the 3 desired polarizations (besides two tensor polarizations from gravity) with second-order e…
Screening fifth forces in generalized Proca theories
Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase +3
For a massive vector field with derivative self-interactions, the breaking of the gauge invariance allows the propagation of a longitudinal mode in addition to the two transverse m…
Cascading dust inflation in Born-Infeld gravity
Jose Beltran Jimenez, Lavinia Heisenberg, Gonzalo J. Olmo +1
In the framework of Born-Infeld inspired gravity theories, which deviates from General Relativity (GR) in the high curvature regime, we discuss the viability of Cosmic Inflation wi…