论文标题
双重重力电荷的哈密顿衍生物
Hamiltonian derivation of dual gravitational charges
论文作者
论文摘要
我们提供了最近发现的双BMS指控的哈密顿派生。为了做到这一点，我们以一阶形式主义工作，并添加到通常的palatini行动中，即霍尔斯特（Holst）术语，这不会有助于运动方程。我们提供了一种方法，可以查找wald-zoupas的前列订单可集成双重电荷并构建相应的电荷代数。我们认为，在fermions面前，导致双重指控的相关术语是拓扑nieh-yan术语。
We provide a Hamiltonian derivation of recently discovered dual BMS charges. In order to do so, we work in the first order formalism and add to the usual Palatini action, the Holst term, which does not contribute to the equations of motion. We give a method for finding the leading order integrable dual charges à la Wald-Zoupas and construct the corresponding charge algebra. We argue that in the presence of fermions, the relevant term that leads to dual charges is the topological Nieh-Yan term.
