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The Galilean Superstring
Joaquim Gomis, Paul K. Townsend
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…
Anti-de Sitter particles and manifest (super)isometries
Alex S. Arvanitakis, Alec E. Barns-Graham, Paul K. Townsend
Starting from the classical action for a spin-zero particle in a D-dimensional anti-Sitter (AdS) spacetime, we recover the Breitenlohner-Freedman bound by quantization. For D=4,5,7…
Worldline CPT and massless supermultiplets
Alex S. Arvanitakis, Luca Mezincescu, Paul K. Townsend
The action for a massless particle in 4D Minkowski space has a worldline time-reversing symmetry corresponding to CPT invariance of the quantum theory. The analogous symmetry of th…
Noether theorems and higher derivatives
Paul K. Townsend
A simple proof of Noether's first theorem involves the promotion of a constant symmetry parameter to an arbitrary function of time, the Noether charge is then the coefficie…
Pauli-Lubanski, Supertwistors, and the Superspinning Particle
Alex S. Arvanitakis, Luca Mezincescu, Paul K. Townsend
We present a novel construction of the super-Pauli-Lubanski pseudo-vector for 4D supersymmetry and show how it arises naturally from the spin-shell constraints in the supertwistor…