The work reported in arXiv:1311.5619v1 proposes to produce continuous-variable cluster states through relativistic motion of cavities. This proposal does not produce the states claimed by the authors. The states actually produced are in general not known to be useful for measurement-based quantum computation.
@article{arxiv.1312.6188,
title = {Comment on "Towards universal quantum computation through relativistic motion"},
author = {Rafael N. Alexander and Natasha C. Gabay and Nicolas C. Menicucci},
journal= {arXiv preprint arXiv:1312.6188},
year = {2014}
}