139 citations · 367 across the 13 of their papers we have counts for
13 papers
Mapping the Universe as a Bianchi I cosmology with Gaia data
Valeri V. Makarov, Asta Heinesen, Thomas Schücker
Measurements of tangential drifts of distant quasars and galactic nuclei on the celestial sphere provide a novel and independent method of testing cosmological hypotheses. In this…
Axial Bianchi I meets drifting extragalactic sources
Thomas Schücker
We recompute {\it ab initio} the drift of comoving sources in axial Bianchi I universes. Our result resolves the long-standing disagreement between the computations by Quercellini…
Power law cosmology model comparison with CMB scale information
Isaac Tutusaus, Brahim Lamine, Alain Blanchard +14
Despite the ability of the cosmological concordance model (CDM) to describe the cosmological observations exceedingly well, power law expansion of the Universe scale radius, $R(…
Einstein-Cartan, Bianchi I and the Hubble Diagram
Sami R. ZouZou, Andre Tilquin, Thomas Schucker
We try to solve the dark matter problem in the fit between theory and the Hubble diagram of supernovae by allowing for torsion via Einstein-Cartan's gravity and for anisotropy via…
Minimal cosmography
Federico Piazza, Thomas Schucker
The minimal requirement for cosmography - a nondynamical description of the universe - is a prescription for calculating null geodesics, and timelike geodesics as a function of the…
On a weak Gauss law in general relativity and torsion
Thomas Schucker, Sami R. ZouZou
We present an explicit example showing that the weak Gauss law of general relativity (with cosmological constant) fails in Einstein-Cartan's theory. We take this as an indication t…
Torsion, an alternative to dark matter?
Andre Tilquin, Thomas Schucker
We confront Einstein-Cartan's theory with the Hubble diagram. An affirmative answer to the question in the title is compatible with today's supernovae data.
From Hubble diagrams to scale factors
Thomas Schucker, Andre Tilquin
We present a lower bound on the radius of the universe today and a monotonicity constraint on the Hubble diagram. Our theoretical input is Einstein's kinematics and maximally…
Moyal Planes are Spectral Triples
V. Gayral, J. M. Gracia-Bondía, B. Iochum +2
Axioms for nonunital spectral triples, extending those introduced in the unital case by Connes, are proposed. As a guide, and for the sake of their importance in noncommutative qua…
Remarks on Alain Connes' approach to the standard model
Daniel Kastler, Thomas Schucker
Our 1992 remarks about Alain Connes' interpretation of the standard model within his theory of non-commutative riemannian spin manifolds.
The standard model in noncommutative geometry and fermion doubling
J. M. Gracia-Bondia, B. Iochum, T. Schucker
The link between chirality in the fermion sector and (anti-)self-duality in the boson sector is reexamined in the light of Connes' noncommutative geometry approach to the Standard…
YANG-MILLS-HIGGS versus CONNES-LOTT
Bruno IOCHUM, Thomas SCHÜCKER
By a suitable choice of variables we show that every Connes-Lott model is a Yang-Mills-Higgs model. The contrary is far from being true. Necessary conditions are given. Our analysi…
A Left-Right Symmetric Model a la Connes-Lott
Bruno Iochum, Thomas Schucker
We present a left-right symmetric model with gauge group in the Connes-Lott non-commutative frame work. Its gauge symmetry is broken spontaneously, parity rem…