Tensionless Strings and Killing(-Yano) Tensors
arXiv:2202.06542 · doi:10.1016/j.physletb.2022.137088
Abstract
We construct invariants for bosonic and spinning tensionless (null) strings in backgrounds that carry Killing tensors or Killing-Yano tensors of mixed type. This is facilitated by the close relation of these strings to point particles. We apply the construction to the Minkowski and to the Kerr-Newman backgrounds.
16 pages