@misc{gheorghiu2008separable,
  title={Separable Operations on Pure States},
  author={Vlad Gheorghiu and Robert B. Griffiths},
  year={2008},
  eprint={0807.2360},
  archivePrefix={arXiv},
  primaryClass={quant-ph},
  url={https://arxiv.org/abs/0807.2360}
}