@article{2049,
  keywords = {pfc},
  author = {M. Castellanos-Beltran and K. Irwin and G. Hilton and Leila Vale and Konrad Lehnert},
  title = {Amplification and squeezing of quantum noise with a tunable Josephson metamaterial},
  year = {2008},
  journal = {Nature Physics},
  volume = {4},
  pages = {929-931},
  month = {2008-12},
  issn = {1745-2473},
  doi = {10.1038/nphys1090},
}