@misc{indiciae1200d1ad3065,
  title = {Optimal quantum pumps.},
  author = {J E Avron and A Elgart and G M Graf and L Sadun},
  year = {2001},
  doi = {10.1103/physrevlett.87.236601},
  url = {https://pubmed.ncbi.nlm.nih.gov/11736465/},
  note = {Source identifier: 11736465}
}