# Conserved charges of quadratic curvature gravity theories in arbitrary backgrounds

 Conserved charges in various theories of gravity Özşahin, Hikmet; Tekin, Bayram; Department of Physics (2022-9) The first law of black hole thermodynamics in the presence of a cosmological constant $\Lambda$ can be generalized by introducing a term containing the variation $\delta\Lambda$. Similar to other terms in the first law, which are variations of some conserved charges like mass, entropy, angular momentum, electric charge etc and it has been shown in \cite{1} that the new term has the same structure: $\Lambda$ is a conserved charge associated with a gauge symmetry. In this work, first we propose and prove the...