Abstract
The action for a Galilean superstring is found from a non-relativistic limit of the closed Green-Schwarz (GS) superstring; it has zero tension and provides an example of a massless super-Galilean system. A Wess-Zumino term leads to a topological central charge in the Galilean supersymmetry algebra, such that unitarity requires a upper bound on the total momentum. This Galilean-invariant bound, which is also implied by the classical phase-space constraints, is saturated by solutions of the superstring equations of motion that half-preserve supersymmetry. We discuss briefly the extension to the Galilean supermembrane.
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Gomis, J., Townsend, P.K. The Galilean superstring. J. High Energ. Phys. 2017, 105 (2017). https://doi.org/10.1007/JHEP02(2017)105
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DOI: https://doi.org/10.1007/JHEP02(2017)105