@misc{indiciaec62515d9973d,
  title = {Measuring quantum states: Experimental setup for measuring the spatial density matrix.},
  author = {M Tegmark},
  year = {1996},
  doi = {10.1103/physreva.54.2703},
  url = {https://pubmed.ncbi.nlm.nih.gov/9913780/},
  note = {Source identifier: 9913780}
}