Symmetries of post-Galilean expansions
arXiv:1910.13560 · doi:10.1103/PhysRevLett.124.081602
Abstract
In this letter we study an infinite extension of the Galilei symmetry group in any dimension that can be thought of as a non-relativistic or post-Galilean expansion of the Poincare symmetry. We find an infinite-dimensional vector space on which this generalized Galilei group acts and usual Minkowski space can be modeled by our construction. We also construct particle and string actions that are invariant under these transformations.
arXiv comment6 pages
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