Volume 14 Issue 2, February 2018

Volume 14 Issue 2

Resonant electron attachment and subsequent dissociation of diatomic molecules is shown to exhibit spatial asymmetry as a consequence of coherent excitation and subsequent interference between reaction pathways. Article p149; News & Views p109 IMAGE: ELLA MARU STUDIO COVER DESIGN: DAVID SHAND

Editorial

  • 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?

Correspondence

Thesis

Books and Arts

Research Highlights

News and Views

  • News & Views |

    Dissociating hydrogen gas seems like it should be as easy as pulling apart two identical atoms. But resonant electron-impact experiments reveal that quantum interference induces a fundamental asymmetry in the process.

    • Daniel S. Slaughter
    •  & Thomas N. Rescigno
  • News & Views |

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

    • Benoit Chalopin
    •  & Arnaud Arbouet
  • News & Views |

    The topological valley Hall effect was predicted as a consequence of the bulk topology of electronic systems. Now it has been observed in photonic crystals, showing that both topology and valley are innate to classical as well as quantum systems.

    • Fan Zhang
  • 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

Perspective

Letters

  • Letter |

    The intensity correlations in incoherently scattered X-rays from a free-electron laser can be exploited to image 2D objects with a resolution close to or below the diffraction limit.

    • Raimund Schneider
    • , Thomas Mehringer
    • , Giuseppe Mercurio
    • , Lukas Wenthaus
    • , Anton Classen
    • , Günter Brenner
    • , Oleg Gorobtsov
    • , Adrian Benz
    • , Daniel Bhatti
    • , Lars Bocklage
    • , Birgit Fischer
    • , Sergey Lazarev
    • , Yuri Obukhov
    • , Kai Schlage
    • , Petr Skopintsev
    • , Jochen Wagner
    • , Felix Waldmann
    • , Svenja Willing
    • , Ivan Zaluzhnyy
    • , Wilfried Wurth
    • , Ivan A. Vartanyants
    • , Ralf Röhlsberger
    •  & Joachim von Zanthier
  • Letter |

    A study of the strong coupling of different exciton species in two-dimensional molybdenum diselenide in a cavity uncovers the rich many-body physics and may lead to new devices.

    • S. Dhara
    • , C. Chakraborty
    • , K. M. Goodfellow
    • , L. Qiu
    • , T. A. O’Loughlin
    • , G. W. Wicks
    • , Subhro Bhattacharjee
    •  & A. N. Vamivakas
  • Letter |

    A scanning tunnelling microscopy study of an intercalated iron selenide-based superconductor reveals a sign change in its superconducting gap function, providing indirect evidence for the origin of the pairing mechanism in this system.

    • Zengyi Du
    • , Xiong Yang
    • , Dustin Altenfeld
    • , Qiangqiang Gu
    • , Huan Yang
    • , Ilya Eremin
    • , Peter J. Hirschfeld
    • , Igor I. Mazin
    • , Hai Lin
    • , Xiyu Zhu
    •  & Hai-Hu Wen
  • Letter |

    In nanoscale electronic circuits, controlling the flow of heat is essential. A demonstration of a heat Coulomb blockade arising from thermal many-body effects shows that thermal transport follows distinct rules in the quantum regime.

    • E. Sivre
    • , A. Anthore
    • , F. D. Parmentier
    • , A. Cavanna
    • , U. Gennser
    • , A. Ouerghi
    • , Y. Jin
    •  & F. Pierre

Articles

  • Article |

    Resonant electron attachment and subsequent dissociation of diatomic molecules is shown to exhibit spatial asymmetry as a consequence of coherent excitation and subsequent interference between reaction pathways.

    • E. Krishnakumar
    • , Vaibhav S. Prabhudesai
    •  & Nigel J. Mason
  • Article |

    Fundamental fingerprints of topological orders may be characterized uniquely and purely by experimental means. Here the authors provide a proof of principle demonstration using interferometric measurement in a two-dimensional lattice system.

    • Zhihuang Luo
    • , Jun Li
    • , Zhaokai Li
    • , Ling-Yan Hung
    • , Yidun Wan
    • , Xinhua Peng
    •  & Jiangfeng Du
  • Article |

    Experimental study of the Kondo insulator SmB6 provides an alternative route to realize a Fermi surface in the absence of a conventional Fermi liquid.

    • M. Hartstein
    • , W. H. Toews
    • , Y.-T. Hsu
    • , B. Zeng
    • , X. Chen
    • , M. Ciomaga Hatnean
    • , Q. R. Zhang
    • , S. Nakamura
    • , A. S. Padgett
    • , G. Rodway-Gant
    • , J. Berk
    • , M. K. Kingston
    • , G. H. Zhang
    • , M. K. Chan
    • , S. Yamashita
    • , T. Sakakibara
    • , Y. Takano
    • , J.-H. Park
    • , L. Balicas
    • , N. Harrison
    • , N. Shitsevalova
    • , G. Balakrishnan
    • , G. G. Lonzarich
    • , R. W. Hill
    • , M. Sutherland
    •  & Suchitra E. Sebastian
  • Article |

    The simplest lattice model that allows the investigation of superconductivity with attractive interactions is realized using ultracold quantum gas. The experimental observation provides a lower bound on the strength of s-wave pairing correlations.

    • Debayan Mitra
    • , Peter T. Brown
    • , Elmer Guardado-Sanchez
    • , Stanimir S. Kondov
    • , Trithep Devakul
    • , David A. Huse
    • , Peter Schauß
    •  & Waseem S. Bakr
  • Article |

    A significant enhancement in the effective mass of Dirac-like quasiparticles residing near a nodal loop in the electronic band structure provides evidence for strong correlation effects in a topological semimetal.

    • S. Pezzini
    • , M. R. van Delft
    • , L. M. Schoop
    • , B. V. Lotsch
    • , A. Carrington
    • , M. I. Katsnelson
    • , N. E. Hussey
    •  & S. Wiedmann
  • Article |

    A tracing of the phase-ordering kinetics of a charge density wave system demonstrates the potential of ultrafast low-energy electron diffraction for studying phase transitions and ordering phenomena at surfaces and in low-dimensional systems.

    • S. Vogelgesang
    • , G. Storeck
    • , J. G. Horstmann
    • , T. Diekmann
    • , M. Sivis
    • , S. Schramm
    • , K. Rossnagel
    • , S. Schäfer
    •  & C. Ropers
  • Article |

    A liquid droplet is shown to slide across a solid surface subject to friction forces analogous with those between two solids. The phenomenon is generic, and closes a gap in our understanding of liquid–solid friction.

    • Nan Gao
    • , Florian Geyer
    • , Dominik W. Pilat
    • , Sanghyuk Wooh
    • , Doris Vollmer
    • , Hans-Jürgen Butt
    •  & Rüdiger Berger

Measure for Measure

  • 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