On the absence of ghosts in quadratic bigravity

Autor:	Gialamas, Ioannis D., Tamvakis, Kyriakos
Rok vydání:	2023
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	An extension of the bimetric theory of gravity is considered that includes quadratic Ricci curvature terms associated with each metric. The issue of the Boulware-Deser ghost is analyzed. The Hamiltonian constraint is derived and the existence of a secondary constraint is shown, proving that the theory is ghost-free. Comment: 13 pages, matches published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2311.14799 Zobrazit plný text záznamu View this record from Arxiv