Twistor description of spinning particles in AdS
arXiv:1710.09557 · doi:10.1007/JHEP01(2018)059
Abstract
The two-twistor formulation of particle mechanics in D-dimensional anti-de Sitter space for D=4,5,7, which linearises invariance under the AdS isometry group Sp(4;K) for K=R,C,H, is generalized to the massless N-extended "spinning particle". The twistor variables are gauge invariant with respect to the initial N local worldline supersymmetries; this simplifies aspects of the quantum theory such as implications of global gauge anomalies. We also give details of the two-supertwistor form of the superparticle, in particular the massive superparticle on AdS_5.
arXiv commentv2: Minor additions (including references), typos corrected. 50 pp
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