Hamiltonian derivation of dual gravitational charges
Perry, Malcolm J.
Journal of High Energy Physics
Springer Berlin Heidelberg
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Godazgar, H., Godazgar, M., & Perry, M. J. (2020). Hamiltonian derivation of dual gravitational charges. Journal of High Energy Physics, 2020 (9) https://doi.org/10.1007/jhep09(2020)084
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 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.
Regular Article - Theoretical Physics, Black Holes in String Theory, Classical Theories of Gravity, Space-Time Symmetries
External DOI: https://doi.org/10.1007/jhep09(2020)084
This record's URL: https://www.repository.cam.ac.uk/handle/1810/316241
Attribution 4.0 International (CC BY 4.0)
Licence URL: https://creativecommons.org/licenses/by/4.0/