Cosmology and fundamental physics with the Euclid satellite
Abstract Euclid is a European Space Agency medium-class mission selected for launch in
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …
Interpretation of the Hubble diagram in a nonhomogeneous universe
P Fleury, H Dupuy, JP Uzan - Physical Review D—Particles, Fields, Gravitation …, 2013 - APS
In the standard cosmological framework, the Hubble diagram is interpreted by assuming that
the light emitted by standard candles propagates in a spatially homogeneous and isotropic …
the light emitted by standard candles propagates in a spatially homogeneous and isotropic …
An exact quantification of backreaction in relativistic cosmology
T Clifton, K Rosquist, R Tavakol - … Review D—Particles, Fields, Gravitation, and …, 2012 - APS
An important open question in cosmology is the degree to which the Friedmann-Lemaître-
Robertson-Walker (FLRW) solutions of Einstein's equations are able to model the large …
Robertson-Walker (FLRW) solutions of Einstein's equations are able to model the large …
Average expansion rate and light propagation in a cosmological Tardis spacetime
M Lavinto, S Räsänen, SJ Szybka - Journal of Cosmology and …, 2013 - iopscience.iop.org
We construct the first exact statistically homogeneous and isotropic cosmological solution in
which inhomogeneity has a significant effect on the expansion rate. The universe is …
which inhomogeneity has a significant effect on the expansion rate. The universe is …
Black-hole universe: time evolution
Time evolution of a black hole lattice toy model universe is simulated. The vacuum Einstein
equations in a cubic box with a black hole at the origin are numerically solved with periodic …
equations in a cubic box with a black hole at the origin are numerically solved with periodic …
Can all cosmological observations be accurately interpreted with a unique geometry?
P Fleury, H Dupuy, JP Uzan - Physical Review Letters, 2013 - APS
The recent analysis of the Planck results reveals a tension between the best fits for (Ω m 0, H
0) derived from the cosmic microwave background or baryonic acoustic oscillations on the …
0) derived from the cosmic microwave background or baryonic acoustic oscillations on the …
On the absence of the usual weak-field limit, and the impossibility of embedding some known solutions for isolated masses in cosmologies with dark energy
The problem of matching different regions of spacetime in order to construct inhomogeneous
cosmological models is investigated in the context of Lagrangian theories of gravity …
cosmological models is investigated in the context of Lagrangian theories of gravity …
Post-Newtonian cosmological modelling
VAA Sanghai, T Clifton - Physical Review D, 2015 - APS
We develop a new approach to building cosmological models, in which small pieces of
perturbed Minkowski space are joined together at reflection-symmetric boundaries in order …
perturbed Minkowski space are joined together at reflection-symmetric boundaries in order …
Black-hole lattices as cosmological models
The search for solutions of Einstein's equations representing relativistic cosmological
models with a discrete matter content has been remarkably fruitful in the last decade. In this …
models with a discrete matter content has been remarkably fruitful in the last decade. In this …