Carroll stories

J de Boer, J Hartong, NA Obers, W Sybesma… - Journal of High Energy …, 2023 - Springer
A bstract We study various aspects of the Carroll limit in which the speed of light is sent to
zero. A large part of this paper is devoted to the quantization of Carroll field theories. We …

Carroll symmetry, dark energy and inflation

J de Boer, J Hartong, NA Obers, W Sybesma… - Frontiers in …, 2022 - frontiersin.org
Carroll symmetry arises from Poincaré symmetry upon taking the limit of vanishing speed of
light. We determine the constraints on the energy-momentum tensor implied by Carroll …

One-loop quantum effects in Carroll scalars

K Banerjee, R Basu, B Krishnan, S Maulik, A Mehra… - Physical Review D, 2023 - APS
Carrollian field theories at the classical level possess an infinite number of space-time
symmetries, namely the supertranslations. In this article, we inquire whether these …

Carrollian hydrodynamics from symmetries

L Freidel, P Jai-akson - Classical and Quantum Gravity, 2023 - iopscience.iop.org
In this work, we revisit Carrollian hydrodynamics, a type of non-Lorentzian hydrodynamics
which has recently gained increasing attentions due to its underlying connection with …

Field theories with conformal Carrollian symmetry

A Bagchi, A Mehra, P Nandi - Journal of High Energy Physics, 2019 - Springer
A bstract Conformal Carrollian groups are known to be isomorphic to Bondi-Metzner-Sachs
(BMS) groups that arise as the asymptotic symmetries at the null boundary of Minkowski …

Carroll expansion of general relativity

D Hansen, N Obers, G Oling, BT Søgaard - SciPost Physics, 2022 - scipost.org
We study the small speed of light expansion of general relativity, utilizing the modern
perspective on non-Lorentzian geometry. This is an expansion around the ultra-local Carroll …

Carroll covariant scalar fields in two dimensions

A Bagchi, A Banerjee, S Dutta, KS Kolekar… - Journal of High Energy …, 2023 - Springer
A bstract Conformal Carroll symmetry generically arises on null manifolds and is important
for holography of asymptotically flat spacetimes, generic black hole horizons and …

Field theories on null manifolds

A Bagchi, R Basu, A Mehra, P Nandi - Journal of High Energy Physics, 2020 - Springer
A bstract We argue that generic field theories defined on null manifolds should have an
emergent BMS or conformal Carrollian structure. We then focus on a simple interacting …

Carrollian conservation laws and Ricci-flat gravity

L Ciambelli, C Marteau - Classical and Quantum Gravity, 2019 - iopscience.iop.org
We construct the Carrollian equivalent of the relativistic energy–momentum tensor, based on
variation of the action with respect to the elementary fields of the Carrollian geometry. We …

Geometry and BMS Lie algebras of spatially isotropic homogeneous spacetimes

J Figueroa-O'Farrill, R Grassie, S Prohazka - Journal of High Energy …, 2019 - Springer
A bstract Simply-connected homogeneous spacetimes for kinematical and aristotelian Lie
algebras (with space isotropy) have recently been classified in all dimensions. In this paper …