@article{physicalimplementationofquantum,
  title = {Protocol for implementing quantum nonparametric learning with trapped ions},
  author = {Dan-Bo Zhang and Shi-Liang Zhu and Z. D. Wang},
  year = {2019},
  eprint = {1906.03388},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1906.03388v2},
}