Non-Riemannian gravity actions from double field theory
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Publication:2044936
DOI10.1007/JHEP06(2021)173zbMATH Open1466.83077arXiv2012.07765WikidataQ115390697 ScholiaQ115390697MaRDI QIDQ2044936
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Publication date: 10 August 2021
Published in: (Search for Journal in Brave)
Abstract: Non-Riemannian gravitational theories suggest alternative avenues to understand properties of quantum gravity and provide a concrete setting to study condensed matter systems with non-relativistic symmetry. Derivation of an action principle for these theories generally proved challenging for various reasons. In this technical note, we employ the formulation of double field theory to construct actions for a variety of such theories. This formulation helps removing ambiguities in the corresponding equations of motion. In particular, we embed Torsional Newton-Cartan gravity, Carrollian gravity and String Newton-Cartan gravity in double field theory, derive their actions and compare with the previously obtained results in literature.
Full work available at URL: https://arxiv.org/abs/2012.07765
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