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
21 papers · 1 filter
Cosmological parameter constraints for Horndeski scalar-tensor gravity
Johannes Noller, Andrina Nicola
We present new cosmological parameter constraints for general Horndeski scalar-tensor theories, using CMB, redshift space distortion, matter power spectrum and BAO measurements fro…
Radiative stability and observational constraints on dark energy and modified gravity
Johannes Noller, Andrina Nicola
We investigate the radiative stability of Horndeski scalar-tensor theories with luminally propagating gravitational waves (as extensively discussed in the wake of GW170817) and sho…
Dense induced bipartite subgraphs in triangle-free graphs
Matthew Kwan, Shoham Letzter, Benny Sudakov +1
The problem of finding dense induced bipartite subgraphs in -free graphs has a long history, and was posed 30 years ago by Erdős, Faudree, Pach and Spencer. In this paper, we ob…
Monochromatic trees in random tournaments
Matija Bucic, Sven Heberle, Shoham Letzter +1
We prove that, with high probability, in every -edge-colouring of the random tournament on vertices there is a monochromatic copy of every oriented tree of order $O (n / \sq…
Cusp Universality for Random Matrices I: Local Law and the Complex Hermitian Case
László Erdős, Torben Krüger, Dominik Schröder
For complex Wigner-type matrices, i.e. Hermitian random matrices with independent, not necessarily identically distributed entries above the diagonal, we show that at any cusp sing…
Euler tours in hypergraphs
Stefan Glock, Felix Joos, Daniela Kühn +1
We show that a quasirandom -uniform hypergraph has a tight Euler tour subject to the necessary condition that divides all vertex degrees. The case when is complete c…
Minimalist designs
Ben Barber, Stefan Glock, Daniela Kühn +3
The iterative absorption method has recently led to major progress in the area of (hyper-)graph decompositions. Amongst other results, a new proof of the Existence conjecture for c…
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…
The quantum tropical vertex
Pierrick Bousseau
Gross-Pandharipande-Siebert have shown that the 2-dimensional Kontsevich-Soibelman scattering diagrams compute certain genus zero log Gromov-Witten invariants of log Calabi-Yau sur…
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…
Electrically tunable gauge fields in tiny-angle twisted bilayer graphene
A. Ramires, J. L. Lado
Twisted bilayer graphene has recently attracted a lot of attention for its rich electronic properties and tunability. Here we show that for very small twist angles, ,…
Three colour bipartite Ramsey number of cycles and paths
Matija Bucić, Shoham Letzter, Benny Sudakov
The -colour bipartite Ramsey number of a bipartite graph is the least integer for which every -edge-coloured complete bipartite graph contains a monochromat…
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…
Inflation in a scale invariant universe
Pedro G. Ferreira, Christopher T. Hill, Johannes Noller +1
A scale-invariant universe can have a period of accelerated expansion at early times: inflation. We use a frame-invariant approach to calculate inflationary observables in a scale…
Tailoring by symmetry principles: The concept of Superconducting Fitness
Aline Ramires, Daniel F. Agterberg, Manfred Sigrist
We propose a generalization of the concept of superconducting fitness, which allows us to make statements analogous to Anderson's theorems concerning the stability of different sup…
Minimum saturated families of sets
Matija Bucić, Shoham Letzter, Benny Sudakov +1
We call a family of subsets of -saturated if it contains no pairwise disjoint sets, and moreover no set can be added to while preserving th…