From pp-Waves to Galilean Spacetimes

Abstract

We exhibit all spatially isotropic homogeneous Galilean spacetimes of dimension $(n+1)\ge 4$, including the novel torsional ones, as null reductions of homogeneous pp-wave spacetimes. We also show that the pp-waves are sourced by pure radiation fields and analyse their global properties.

References in corpus (3)

• On the intrinsic torsion of spacetime structures
• Holographic solar systems and hydrogen atoms: non-relativistic physics in AdS and its CFT dual
• Lifshitz symmetry: Lie algebras, spacetimes and particles

Cited by in corpus (1)

• Possible ambient kinematics