1308.0318 (Lin-Qing Chen)

Orientability of loop processes in Relative Locality    [PDF]

Lin-Qing Chen

We introduce a way to classify loop processes in relative locality in the case of Kappa-Poincare momentum space. We show that orientability is connected to a few essential properties in loop processes. Non-orientable loops have "effective curvature", which explicitly breaks translation symmetry, and can lead to breaking of causality and global momentum conservation. Orientable loops are "flat". Causality and global momentum conservation are all preserved in this kind of loops. We argue that the non-trivial classical loops in relative locality might be understood as dual effects from general relativity.

View original: http://arxiv.org/abs/1308.0318