Linear amplification and quantum cloning for non-Gaussian continuous variables Academic Article uri icon


  • We investigate phase-insensitive linear amplification at the quantum limit for single-and two-mode states and show that there exists a broad class of non-Gaussian states whose nonclassicality survives even at an arbitrarily large gain. We identify the corresponding observable nonclassical effects and find that they include, remarkably, two-mode entanglement. The implications of our results for quantum cloning outside the Gaussian regime are also addressed. IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

published proceedings


author list (cited authors)

  • Nha, H., Milburn, G. J., & Carmichael, H. J.

citation count

  • 24

complete list of authors

  • Nha, Hyunchul||Milburn, GJ||Carmichael, HJ

publication date

  • October 2010