Hamiltonian derivation of dual gravitational charges
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Publication:1995112
DOI10.1007/JHEP09(2020)084zbMATH Open1454.83134arXiv2007.07144MaRDI QIDQ1995112
Author name not available (Why is that?)
Publication date: 18 February 2021
Published in: (Search for Journal in Brave)
Abstract: 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 `a 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.
Full work available at URL: https://arxiv.org/abs/2007.07144
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