Volume 13 Issue 1, January 2017

Volume 13 Issue 1

Spindle-shaped cells readily form nematic structures marked by topological defects. When confined, the defect distribution is independent of the domain size, activity and type of cell, lending a stability not found in non-cellular active nematics. Letter p58 IMAGE: GUILLAUME DUCLOS, INSTITUT CURIE COVER DESIGN: BETHANY VUKOMANOVIC

Editorials

  • Editorial |

    China is investing in big astronomy and astrophysics projects, but is still debating the way forward in experimental particle physics.

  • Editorial |

    This month we officially welcome our new sister journal, Nature Astronomy.

Correspondence

Commentary

  • Commentary |

    Secure communication is emerging as a significant challenge for our hyper-connected data-dependent society. The answer may lie in a clever combination of quantum and classical cryptographic techniques.

    • Eleni Diamanti
    •  & Elham Kashefi

Thesis

Books and Arts

Research Highlights

News and Views

  • News & Views |

    By exploiting the optical Stark effect, the valley degree of freedom in monolayer transition metal dichalcogenides can be selectively manipulated and detected using all-optical methods.

    • Xiaoqin Li
    •  & Galan Moody
  • News & Views |

    Simple models have given us surprising insight into how animals flock, but most assume they do so through a homogeneous landscape. Colloidal experiments now suggest that a little disorder can have unexpected — and spectacular — effects.

    • C. J. Olson Reichhardt
    •  & C. Reichhardt
  • News & Views |

    When light and matter are strongly coupled, they lose their distinct character and merge into a hybrid state. Three experiments explore this exotic regime using artificial atoms, with promise for quantum technologies.

    • Kater Murch

Progress Article

  • Progress Article |

    Recent progress in engineering quantum gases of polar molecules brings closer their application in fundamental tests, ultracold chemistry and the study of new quantum phases of matter.

    • Steven A. Moses
    • , Jacob P. Covey
    • , Matthew T. Miecnikowski
    • , Deborah S. Jin
    •  & Jun Ye

Letters

  • Letter |

    Surprising observations in the evolution of electronic states in electron-doped iridates provide fresh insight into the melting of the Mott state and might lead to a fuller understanding of corresponding processes in copper-oxide superconductors.

    • I. Battisti
    • , K. M. Bastiaans
    • , V. Fedoseev
    • , A. de la Torre
    • , N. Iliopoulos
    • , A. Tamai
    • , E. C. Hunter
    • , R. S. Perry
    • , J. Zaanen
    • , F. Baumberger
    •  & M. P. Allan
  • Letter |

    Valleys in momentum space provide a degree of freedom that could be exploited for applications. A demonstration of valley pseudospin control now completes the generation–manipulation–detection paradigm, paving the way for valleytronic devices.

    • Ziliang Ye
    • , Dezheng Sun
    •  & Tony F. Heinz
  • Letter |

    Spin currents can be carried by electrons and by magnons. Experiments now show that, in one-dimensional spin chains, spin currents can also be carried by particle-like excitations known as spinons.

    • Daichi Hirobe
    • , Masahiro Sato
    • , Takayuki Kawamata
    • , Yuki Shiomi
    • , Ken-ichi Uchida
    • , Ryo Iguchi
    • , Yoji Koike
    • , Sadamichi Maekawa
    •  & Eiji Saitoh
  • Letter |

    Atom–molecule interactions are orientation-dependent. Now the anisotropy of He–H2 interactions has been probed by measuring how the associated quantum scattering resonances respond to tuning of the H2 rotational state.

    • Ayelet Klein
    • , Yuval Shagam
    • , Wojciech Skomorowski
    • , Piotr S. Żuchowski
    • , Mariusz Pawlak
    • , Liesbeth M. C. Janssen
    • , Nimrod Moiseyev
    • , Sebastiaan Y. T. van de Meerakker
    • , Ad van der Avoird
    • , Christiane P. Koch
    •  & Edvardas Narevicius
  • Letter |

    A circuit that pairs a flux qubit with an LC oscillator via Josephson junctions pushes the coupling between light to matter to uncharted territory, with the potential for new applications in quantum technologies.

    • Fumiki Yoshihara
    • , Tomoko Fuse
    • , Sahel Ashhab
    • , Kosuke Kakuyanagi
    • , Shiro Saito
    •  & Kouichi Semba
  • Letter |

    Using a superconducting transmon qubit coupled to a microwave photonic crystal one can study intriguing strong-coupling effects such as the emergence of localized cavity modes within the photonic bandgap.

    • Yanbing Liu
    •  & Andrew A. Houck
  • Letter |

    Solitonic modes that are redshifted due to a Raman-related effect are reported in optical microcavities, and termed Stokes solitons.

    • Qi-Fan Yang
    • , Xu Yi
    • , Ki Youl Yang
    •  & Kerry Vahala
  • Letter |

    Spindle-shaped cells readily form nematic structures marked by topological defects. When confined, the defect distribution is independent of the domain size, activity and type of cell, lending a stability not found in non-cellular active nematics.

    • Guillaume Duclos
    • , Christoph Erlenkämper
    • , Jean-François Joanny
    •  & Pascal Silberzan
  • Letter |

    Our understanding of collective animal behaviour generally assumes that flocks and herds move through homogeneous environments. Colloidal experiments suggest that flocking can be distorted or even suppressed by the introduction of disorder.

    • Alexandre Morin
    • , Nicolas Desreumaux
    • , Jean-Baptiste Caussin
    •  & Denis Bartolo

Articles

  • Article |

    Light propagating through a cloud of cold atoms can be slowed down by exciting a certain type of spin wave in the atomic ensemble. This stationary light could find applications in quantum technologies.

    • J. L. Everett
    • , G. T. Campbell
    • , Y.-W. Cho
    • , P. Vernaz-Gris
    • , D.B. Higginbottom
    • , O. Pinel
    • , N. P. Robins
    • , P. K. Lam
    •  & B. C. Buchler
  • Article |

    An optomechanical system made of an optical cavity filled with superfluid liquid helium provides the means to study phenomena involving different degrees of freedom than those in traditional solid-state resonators.

    • A. D. Kashkanova
    • , A. B. Shkarin
    • , C. D. Brown
    • , N. E. Flowers-Jacobs
    • , L. Childress
    • , S. W. Hoch
    • , L. Hohmann
    • , K. Ott
    • , J. Reichel
    •  & J. G. E. Harris
  • Article |

    A near-field optical microscopy study provides nanoscale insight into an insulator-to-metal transition and the interplay with a neighbouring structural phase transition in a prototypical correlated electron material.

    • A. S. McLeod
    • , E. van Heumen
    • , J. G. Ramirez
    • , S. Wang
    • , T. Saerbeck
    • , S. Guenon
    • , M. Goldflam
    • , L. Anderegg
    • , P. Kelly
    • , A. Mueller
    • , M. K. Liu
    • , Ivan K. Schuller
    •  & D. N. Basov
  • Article |

    The interplay between spin physics and superconductivity is examined in HgTe quantum wells, revealing a tunable momentum of the Cooper pairs that drives changes in their superconducting behaviour.

    • Sean Hart
    • , Hechen Ren
    • , Michael Kosowsky
    • , Gilad Ben-Shach
    • , Philipp Leubner
    • , Christoph Brüne
    • , Hartmut Buhmann
    • , Laurens W. Molenkamp
    • , Bertrand I. Halperin
    •  & Amir Yacoby

Measure for Measure

  • Measure for Measure |

    Temperature measurement standards rely on highly reproducible states of matter — including eutectic points, as Jonathan Pearce explains.

    • Jonathan Pearce

Correction