Surface terms and the Gauss-Bonnet Hamiltonian
Surface terms and the Gauss-Bonnet Hamiltonian
复制标题
表面项和 Gauss-Bonnet 哈密顿量
DOI:
10.1088/0264-9381/20/14/315
复制
发表时间:
2003
影响因子:
3.5
通讯作者:
Antonio Padilla
中科院分区:
文献类型:
--
作者:
Antonio Padilla
We derive the gravitational Hamiltonian starting from the Gauss–Bonnet action, keeping track of all surface terms. This is done using the language of orthonormal frames and forms to keep things as tidy as possible. The surface terms in the Hamiltonian give a remarkably simple expression for the total energy of a spacetime. This expression is consistent with energy expressions found in Preprint hep-th/0212292. However, we can apply our results whatever the choice of background and whatever the symmetries of the spacetime.