Milne boost from galilean gauge theory
Rabin Banerjee, Pradip Mukherjee
TL;DR
This paper explains the physical basis of Milne boost invariance in Newton-Cartan spacetime through local Galilean boosts, using galilean gauge theory without needing additional gauge fields.
Contribution
It demonstrates that Milne boost invariance arises naturally from local Galilean boosts in the metric structure, without introducing extra gauge fields.
Findings
Milne boost invariance is linked to local Galilean boosts.
Galilean gauge theory explains the invariance without additional gauge fields.
Provides a gauge-theoretic understanding of Newton-Cartan spacetime symmetry.
Abstract
Physical origin of Milne boost invariance of the Newton Cartan spacetime is traced to the effect of local Galilean boosts in its metric structure, using galilean gauge theory. Specifically, we do not require any gauge field to understand Milne boost invariance.
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