2015/12/18 by Eric Bergshoeff, Jan Rosseel, Thomas Zojer · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1088/0264-9381/33/17/175010
19 pages
arxiv created 2015/12/18 · arxiv updated 2016/08/17
We discuss a non-relativistic contraction of massive and massless field theories minimally coupled to gravity. Using the non-relativistic limiting procedure introduced in our previous work, we (re-)derive non-relativistic field theories of massive and massless spins 0 to 3/2 coupled to torsionless Newton-Cartan backgrounds. We elucidate the relativistic origin of the Newton-Cartan central charge gauge field mμ and explain its relation to particle number conservation.