53 citations
- ETH ZurichCH8 papers
- Heidelberg UniversityDE2 papers
- Institute for Particle Physics and AstrophysicsCH2 papers
- Columbia UniversityUS1 paper
- Institute for Theoretical PhysicsCH1 paper
- Institute of Science and Technology AustriaAT1 paper
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT1 paper
- Leipzig UniversityDE1 paper
- Scuola Normale SuperioreIT1 paper
- Universität UlmDE1 paper
- University of BirminghamGB1 paper
- University of CambridgeGB1 paper
8 papers
Convex hulls of surfaces in fourspace
Chiara Meroni, Kristian Ranestad, Rainer Sinn
This is a case study of the algebraic boundary of convex hulls of varieties. We focus on surfaces in fourspace to showcase new geometric phenomena that neither curves nor hypersurf…
Horndeski under the quantum loupe
Lavinia Heisenberg, Johannes Noller, Jann Zosso
With recent constraints on the propagation speed of gravitational waves, the class of scalar-tensor theories has significantly been reduced. We consider one of the surviving models…
Cosmological constraints on dark energy in light of gravitational wave bounds
Johannes Noller
Gravitational wave (GW) constraints have recently been used to significantly restrict models of dark energy and modified gravity. New bounds arising from GW decay and GW-induced da…
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…
Counting Hamilton cycles in Dirac hypergraphs
Stefan Glock, Stephen Gould, Felix Joos +2
A tight Hamilton cycle in a -uniform hypergraph (-graph) is a cyclic ordering of the vertices of such that every set of consecutive vertices in the ordering forms…
Scattering diagrams, stability conditions, and coherent sheaves on
Pierrick Bousseau
We show that a purely algebraic structure, a two-dimensional scattering diagram, describes a large part of the wall-crossing behavior of moduli spaces of Bridgeland semistable obje…