We study scarring phenomena in open quantum systems. We show numerical evidence that individual resonance eigenstates of an open quantum system present localization around unstable short periodic orbits in a similar way as their closed counterparts. The structure of eigenfunctions around these classical objects is not destroyed by the opening. This is exposed in a paradigmatic system of quantum chaos, the cat map.
@article{arxiv.0711.4970,
title = {Scarring in open quantum systems},
author = {Diego Wisniacki and Gabriel G. Carlo},
journal= {arXiv preprint arXiv:0711.4970},
year = {2009}
}