A Chern–Simons gravity action in d=4

Autor: F. Izaurieta, I. Muñoz, P. Salgado
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Physics Letters B, Vol 750, Iss C, Pp 39-44 (2015)
Druh dokumentu: article
ISSN: 0370-2693
1873-2445
DOI: 10.1016/j.physletb.2015.08.030
Popis: Recently, Antoniadis, Konitopoulos and Savvidy have introduced in Refs. [1–4] a procedure to construct background-free gauge invariants, using non-abelian gauge potentials described by forms of higher degree. Their construction is particularly useful because it can be used in both, odd- and even-dimensional spacetimes. Using their technique, we generalize the Chern–Weil theorem and construct a gauge-invariant, (2n+2)-dimensional transgression form, and study its relationship with the generalized Chern–Simons forms introduced in Refs. [1,2]. Using the methods for FDA manipulation and decomposition in 1-forms developed in Ref. [5] and applied in Refs. [6] and [7], we construct a four-dimensional Chern–Simons gravity action, which is off-shell gauge invariant under the Maxwell algebra.
Databáze: Directory of Open Access Journals
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