Carroll fermions

Bergshoeff, Eric; Campoleoni, Andrea; Fontanella, Andrea; Mele, Lea; Rosseel, Jan (2024) Carroll fermions. SciPost Physics, 16 (6). ISSN 2666-4003

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Abstract

Using carefully chosen projections, we consider different Carroll limits of relativistic Dirac fermions in any spacetime dimensions. These limits define Carroll fermions of two types: electric and magnetic. The latter type transforms as a reducible but indecomposable representation of the Carroll group. We also build action principles for all Carroll fermions we introduce; in particular, in even dimensions we provide an action principle for a minimal magnetic Carroll fermion, having the same number of components as a Dirac spinor. We then explore the coupling of these fermions to magnetic Carroll gravity in both its first-order and second-order formulations.

Item Type:	Article
Uncontrolled Keywords:	non-Lorentzian geometry; Carroll symmetry; flat space holography
Subjects:	NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Theoretical Physics Division
Depositing User:	Jan Rosseel
Date Deposited:	14 Jan 2026 15:24
URI:	http://fulir.irb.hr/id/eprint/10916
DOI:	10.21468/SciPostPhys.16.6.153

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