12 citations · 14 across the 10 of their papers we have counts for
13 papers · 1 filter
An off-shell conformally invariant Galilean Weyl tensor
Quentin Vigneron, Philip K. Schwartz, James Read
We propose a manifestly conformally invariant off-shell definition of the Weyl tensor in Galilean geometry. We also propose definitions for the electric and magnetic parts thereof.…
General formalism, classification, and demystification of the current warp-drive spacetimes
Hamed Barzegar, Thomas Buchert, Quentin Vigneron
We critically examine proposals for the so-called warp-drive spacetimes and classify these models based on their various restrictions within the framework of General Relativity. We…
Bianchi cosmologies in a Thurston-based theory of gravity
Quentin Vigneron, Hamed Barzegar
The strong interplay between Bianchi--Kantowski--Sachs (BKS) spacetimes and Thurston geometries motivates the exploration of the role of topology in our understanding of gravity. A…
Affine connections for Galilean and Carrollian structures: a unified perspective
Quentin Vigneron, Hamed Barzegar, James Read
We develop a classification of general Carrollian structures, permitting affine connections with both torsion and non-metricity. We compare with a recent classification of general…
A natural model for curved inflation
Quentin Vigneron, Julien Larena
Inflationary models with a non-zero background curvature require additional hypothesis or parameters compared to flat inflation and the procedure to construct them cannot be as sim…
Topologically modified Einstein equation: a solution with singularities on
Quentin Vigneron, Áron Szabó, Pierre Mourier
Vigneron [Foundations of Physics, 54, 15, (2024)] recently proposed a modification of general relativity in which a non-dynamical term related to the spatial topology is introduced…