News & Comment

  • News & Views |

    An ultracold mixture of Bose gases is eight orders of magnitude more dilute than water. However, quantum fluctuations turn it into a self-bound liquid droplet.

    • Dmitry S. Petrov
  • News & Views |

    Bringing next-generation atomic clocks out of the lab is not an easy task, but doing so will unlock many new possibilities. As a crucial first step, a portable atomic clock has now been deployed for relativistic geodesy measurements in the Alps.

    • Andrew D. Ludlow
  • News & Views |

    The ultimate regime of turbulence has been observed, more than half a century after its first prediction. Inspiration for achieving this technical feat came from the imperfections of an everyday pipe.

    • Alexander J. Smits
  • Correspondence |

    • I. R. Mann
    • , L. G. Ozeke
    • , S. K. Morley
    • , K. R. Murphy
    • , S. G. Claudepierre
    • , D. L. Turner
    • , D. N. Baker
    • , I. J. Rae
    • , A. Kale
    • , D. K. Milling
    • , A. J. Boyd
    • , H. E. Spence
    • , H. J. Singer
    • , S. Dimitrakoudis
    • , I. A. Daglis
    •  & F. Honary
  • News & Views |

    A generalization of the Kapitza–Dirac effect enables new ways of controlling free electrons with ultrashort light pulses.

    • Benoit Chalopin
    •  & Arnaud Arbouet
  • Measure for Measure |

    A nuclear clock could outperform atomic clocks, but its development has turned out to be a formidable task, writes Marianna Safronova.

    • Marianna Safronova
  • Editorial |

    Scientific flaws in a film can distract the most avid filmgoer and lend fodder to countless blog posts. But how do filmmakers actually check their facts — and how much should we really care?

  • News & Views |

    Device-independent quantum cryptography promises unprecedented security, but it is regarded as a theorist's dream and an experimentalist's nightmare. A new mathematical tool has now pushed its experimental demonstration much closer to reality.

    • Artur Ekert
  • News & Views |

    Active galactic nuclei are firm favourites to be revealed as the source of cosmic rays, but solid evidence has proven elusive. A model taking both local and global nuclei propagation into account may help to close the deal.

    • Julia Becker Tjus
  • News & Views |

    Turbulence in pipe flows causes substantial friction and economic losses. The solution to appease the flow through pipelines might be, counterintuitively, to initially enhance turbulent mixing and get laminar flow in return.

    • Mitul Luhar
  • News & Views |

    Enabled by recent advances in symmetry and electronic structure, researchers have observed signatures of unconventional threefold degeneracies in tungsten carbide, challenging a longstanding paradigm in nodal semimetals.

    • Benjamin J. Wieder
  • News & Views |

    Technological innovation seems to be dominated by chance. But a new mathematical analysis suggests we might be able to anticipate when seemingly useless technologies become keystones of more complex environments.

    • César A. Hidalgo
  • Commentary |

    As we move beyond the twentieth anniversary of the teleportation of a quantum state, it's clear that the coming years will be just as fruitful.

    • Anton Zeilinger