Galilean first-order formulation for the nonrelativistic expansion of general relativity
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- PhysRevD.104.L061501
Final published version, 224 KB, PDF document
We reformulate the Palatini action for general relativity in terms of moving frames that exhibit local Galilean covariance in a large speed of light expansion. For this, we express the action in terms of variables that are adapted to a Galilean subgroup of the GL(n, R) structure group of a general frame bundle. This leads to a novel Palatini-type formulation of general relativity that provides a natural starting point for a first-order nonrelativistic expansion. in doing so, we show how a comparison of Lorentzian and Newton-Cartan metric compatibility explains the appearance of torsion in the nonrelativistic expansion.
Original language | English |
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Article number | L061501 |
Journal | Physical Review D |
Volume | 104 |
Issue number | 6 |
Number of pages | 6 |
ISSN | 2470-0010 |
DOIs | |
Publication status | Published - 22 Sep 2021 |
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