Four‐Dimensional Gravity on a Covariant Noncommutative Space (II)

Manolakos, George; Manousselis, Pantelis; Zoupanos, George (2021) Four‐Dimensional Gravity on a Covariant Noncommutative Space (II). Fortschritte der Physik, 69 (8-9). ISSN 0015-8208

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Abstract

Based on the construction of the 4-dim noncommutative gravity model described in our previous work, first, a more extended description of the covariant noncommutative space (fuzzy 4-dim de Sitter space), which accommodates the gravity model, is presented and then the corresponding field equations, which are obtained after variation of the previously proposed action, are extracted. Also, a spontaneous breaking of the initial symmetry is performed, this time induced by the introduction of an auxiliary scalar field, and its implications in the reduced theory, which is produced after considering the commutative limit, are examined.

Item Type:	Article
Uncontrolled Keywords:	four-dimensional gravity fuzzy ; de Sitter ; gauge theories ; noncommutative gravity ; noncommutative spaces ; spontaneous symmetry breaking
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics
Divisions:	Theoretical Physics Division
Depositing User:	Kristina Ciglar
Date Deposited:	18 Dec 2022 21:10
URI:	http://fulir.irb.hr/id/eprint/7748
DOI:	10.1002/prop.202100085

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