New currents with Killing-Yano tensors

2021-04-21

Authors: Ulf Lindström and Özgür Sarioglu

Preprint number: UUITP-20/21

Abstract: New relations involving the Riemann, Ricci and Einstein tensors that have to hold for a given geometry to admit Killing-Yano tensors are described. These relations are then used to introduce novel conserved currents involving such Killing-Yano tensors. For a particular current based on the Einstein tensor, we discuss the issue of conserved charges and consider implications for the matter coupling to gravity. The condition on the background geometry to allow asymptotic conserved charges for a current introduced by Kastor and Traschen is found and a number of other new aspects of this current are commented on.