# Some properties of the Noether charge and a proposal for dynamical black hole entropy.

@article{Iyer1994SomePO, title={Some properties of the Noether charge and a proposal for dynamical black hole entropy.}, author={Iyer and Wald}, journal={Physical review. D, Particles and fields}, year={1994}, volume={50 2}, pages={ 846-864 } }

We consider a general, classical theory of gravity with arbitrary matter fields in $n$ dimensions, arising from a diffeomorphism invariant Lagrangian, $\bL$. We first show that $\bL$ always can be written in a ``manifestly covariant" form. We then show that the symplectic potential current $(n-1)$-form, $\th$, and the symplectic current $(n-1)$-form, $\om$, for the theory always can be globally defined in a covariant manner. Associated with any infinitesimal diffeomorphism is a Noether current…

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