Noether charges in the geometrical trinity of gravity

Jose Beltr\'an Jim\'enez; Tomi S. Koivisto

Noether charges in the geometrical trinity of gravity

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arxiv 2111.04716 v2 pith:LRTSWVWT submitted 2021-11-08 gr-qc hep-th

Jose Beltrán Jiménez , Tomi S. Koivisto This is my paper · ORCID

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keywords noetherenergy-momentumgravitycanonicalchargesclarifiedcurrentsderived

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The Noether currents are derived in a generic metric-affine theory of gravity, and the holographic nature of the gravitational entropy and energy-momentum is clarified. The main result is the verification of the canonical resolution to the energy-momentum problem in the Noether formalism.

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$f(T)$ Gravity: Background Dependence and Propagating Degrees of Freedom
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By perturbing f(T) gravity around FLRW and Bianchi I spacetimes, the authors find that only the two gravitational-wave polarizations propagate in the gravity sector.

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