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arXiv 2007.07144hep-thgr-qc
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对偶引力荷的哈密顿推导

Hamiltonian derivation of dual gravitational charges

Hadi Godazgar, Mahdi Godazgar, Malcolm J. Perry

摘要:

我们提供了一个哈密顿推导最近发现的双BMS收费。为了做到这一点,我们在一阶形式主义中工作,并添加到通常的Palatini作用量,Holst项,它对运动方程没有贡献。给出了寻找首阶可积对偶荷的一种方法,并构造了相应的荷代数.我们认为,在费米子的存在下,相关的长期,导致双重收费是拓扑Nieh-Yan长期。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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