Volume 10 Issue 12, December 2014

Volume 10 Issue 12

An imaging study of vortex proliferation near a continuous phase transition in a ferroelectric reveals frozen-in vortices that follow the predictions of the Kibble–Zurek model for cosmological strings formed in the early Universe.Article p970; News & Views p907 IMAGE:XUEYUN WANG AND SANG-WOOK CHEONG COVER DESIGN: ALLEN BEATTIE

Editorial

  • Editorial |

    As the debate on immigration in the UK becomes increasingly visceral, British science risks being caught in the crossfire.

Commentary

  • Commentary |

    Monolayer films of iron selenide deposited on strontium titanate display signatures of superconductivity at temperatures as high as 109 K. These recent developments may herald a flurry of exciting findings concerning superconductivity at interfaces.

    • Ivan Bozovic
    •  & Charles Ahn

Thesis

Books and Arts

Research Highlights

News and Views

  • News & Views |

    The old adage that you can't tango alone is certainly true for humans. But recent experiments show that it may also be applicable to Rydberg atoms, which keep a beat through the coherent exchange of energy.

    • Robert Löw
  • News & Views |

    Solitons in attractive Bose–Einstein condensates are mesoscopic quantum objects that may prove useful as tools for precision measurement. A new experiment shows that collisions of matter-wave bright solitons depend crucially on their relative phase.

    • Thomas P. Billam
    •  & Christoph Weiss
  • News & Views |

    Non-reciprocal components are useful in microwave engineering and photonics, but they are not without their drawbacks. A compact design now provides non-reciprocity without resorting to magnets or nonlinearity.

    • Ari Sihvola
  • News & Views |

    Stretching a sheet of graphene could induce a superconducting state. Similar strain-induced superconductivity may be realized at the interface between a topological crystalline insulator and a trivial band insulator.

    • Fakher F. Assaad
  • News & Views |

    Dark matter remains experimentally elusive. But what if it is more classical than expected, resembling a spatially varying field? A network of atomic clocks would be able to detect its variations.

    • Rana Adhikari
    • , Paul Hamiton
    •  & Holger Müller
  • News & Views |

    Ferroelectric polarization vortices close to a ferroelectric transition turn out to be striking models of the cosmos in which strings are thought to have condensed out of the rapid expansion of the early Universe.

    • Stephen E. Rowley
    •  & Gilbert G. Lonzarich

Progress Article

  • Progress Article |

    The on-line isotope separation technique for the production of accelerated beams of radioactive ions has led to important advances in our understanding of atomic nuclei. These are now reviewed, and further prospects are discussed.

    • David Gareth Jenkins

Letters

  • Letter |

    Atomic matter waves provide a controllable platform for studying the behaviour of solitons. In a lithium condensate, a characterization of the dynamics of collisions between solitons reveals a dependence on their relative phases.

    • Jason H. V. Nguyen
    • , Paul Dyke
    • , De Luo
    • , Boris A. Malomed
    •  & Randall G. Hulet
  • Letter |

    A Fulde–Ferrell–Larkin–Ovchinnikov superconductor comprises pairs of fermions with non-zero momentum, which form alternating superconducting and normal regions in a magnetic field. NMR measurements now provide microscopic evidence for such a state.

    • H. Mayaffre
    • , S. Krämer
    • , M. Horvatić
    • , C. Berthier
    • , K. Miyagawa
    • , K. Kanoda
    •  & V. F. Mitrović
  • Letter |

    A proposal for detecting dark matter originating from light fields rather than particles makes use of existing networks of atomic clocks to measure time discrepancies between clocks that are spatially separated.

    • A. Derevianko
    •  & M. Pospelov

Articles

Futures

Erratum