Latest Research

  • Article |

    Wrinkling in human brain organoids suggests that brain development may be mechanically driven, a notion supported only by model gels so far. Evidence in this simple living system highlights roles for cytoskeletal contraction and nuclear expansion.

    • Eyal Karzbrun
    • , Aditya Kshirsagar
    • , Sidney R. Cohen
    • , Jacob H. Hanna
    •  & Orly Reiner
  • Article |

    Photoexcitation circular dichroism generates an ultrafast response in chiral molecules, with a much higher sensitivity than standard circular dichroism.

    • S. Beaulieu
    • , A. Comby
    • , D. Descamps
    • , B. Fabre
    • , G. A. Garcia
    • , R. Géneaux
    • , A. G. Harvey
    • , F. Légaré
    • , Z. Mašín
    • , L. Nahon
    • , A. F. Ordonez
    • , S. Petit
    • , B. Pons
    • , Y. Mairesse
    • , O. Smirnova
    •  & V. Blanchet
  • Article |

    Canonical pattern formation relies on a system being close to an instability and stabilized by nonlinearities — but real systems seldom conform to these conditions. A new theory solves the problem by recasting it in terms of moving local equilibria.

    • J. Halatek
    •  & E. Frey
  • Letter |

    Nodal chains are observed for the first time in a photonic crystal with accompanying drumhead surface states. This will stimulate further study of topological nodal lines with non-trivial connectivity.

    • Qinghui Yan
    • , Rongjuan Liu
    • , Zhongbo Yan
    • , Boyuan Liu
    • , Hongsheng Chen
    • , Zhong Wang
    •  & Ling Lu
  • Letter |

    An atomic clock has been deployed on a field measurement campaign to determine the height of a mountain location 1,000 m above sea level, returning a value that is in good agreement with state-of-the-art geodesy.

    • Jacopo Grotti
    • , Silvio Koller
    • , Stefan Vogt
    • , Sebastian Häfner
    • , Uwe Sterr
    • , Christian Lisdat
    • , Heiner Denker
    • , Christian Voigt
    • , Ludger Timmen
    • , Antoine Rolland
    • , Fred N. Baynes
    • , Helen S. Margolis
    • , Michel Zampaolo
    • , Pierre Thoumany
    • , Marco Pizzocaro
    • , Benjamin Rauf
    • , Filippo Bregolin
    • , Anna Tampellini
    • , Piero Barbieri
    • , Massimo Zucco
    • , Giovanni A. Costanzo
    • , Cecilia Clivati
    • , Filippo Levi
    •  & Davide Calonico
  • Article |

    Turbulence is seldom confined by boundaries that are perfectly smooth, but wall roughness is usually ignored. A study of flows between rotating cylinders suggests that roughness enhances turbulent transport and alters its scaling behaviour.

    • Xiaojue Zhu
    • , Ruben A. Verschoof
    • , Dennis Bakhuis
    • , Sander G. Huisman
    • , Roberto Verzicco
    • , Chao Sun
    •  & Detlef Lohse
  • Letter |

    Coupling strengths differ between neighbours in square artificial spin ices, resulting in the loss of degeneracy. Introducing mesospins on vertices of the array alleviates this problem, by tuning the strength and ratio of the interaction energies.

    • Erik Östman
    • , Henry Stopfel
    • , Ioan-Augustin Chioar
    • , Unnar B. Arnalds
    • , Aaron Stein
    • , Vassilios Kapaklis
    •  & Björgvin Hjörvarsson
  • Article |

    A large-scale density matrix renormalization group study of the dipolar Heisenberg model reveals evidence for quantum spin liquid ground states on both triangular and kagome lattices.

    • N. Y. Yao
    • , M. P. Zaletel
    • , D. M. Stamper-Kurn
    •  & A. Vishwanath
  • Article |

    Many-body effects in an interacting spin-orbit coupled Fermi gas are studied with the help of clock spectroscopy. The results provide a simple view of how strong collective dynamics arise from local interactions in the presence of spin–orbit coupling.

    • S. L. Bromley
    • , S. Kolkowitz
    • , T. Bothwell
    • , D. Kedar
    • , A. Safavi-Naini
    • , M. L. Wall
    • , C. Salomon
    • , A. M. Rey
    •  & J. Ye
  • Article |

    Although predicted to occur in planetary interiors, superionic water ice has proved elusive to identify experimentally. Laser-driven shock-compression experiments on water ice VII now verify its existence.

    • Marius Millot
    • , Sebastien Hamel
    • , J. Ryan Rygg
    • , Peter M. Celliers
    • , Gilbert W. Collins
    • , Federica Coppari
    • , Dayne E. Fratanduono
    • , Raymond Jeanloz
    • , Damian C. Swift
    •  & Jon H. Eggert
  • Letter |

    Pump–probe measurements of CuB2O4 reveal non-reciprocal directional dichroism, demonstrating the possibility to optically induce magnetoelectricity in a material on a femtosecond timescale.

    • D. Bossini
    • , K. Konishi
    • , S. Toyoda
    • , T. Arima
    • , J. Yumoto
    •  & M. Kuwata-Gonokami
  • Article |

    Helical modes are induced in a high-mobility two-dimensional electron gas without strong spin–orbit coupling. This platform provides a versatile playground for investigating compounded quantum Hall edge states.

    • Yuval Ronen
    • , Yonatan Cohen
    • , Daniel Banitt
    • , Moty Heiblum
    •  & Vladimir Umansky
  • Letter |

    A microfocused angle-resolved photoemission spectroscopy study of single layers of WS2 on hexagonal boron nitride reveals that, upon electron doping, trionic interactions cause a giant increase of the spin splitting in the valence band.

    • Jyoti Katoch
    • , Søren Ulstrup
    • , Roland J. Koch
    • , Simon Moser
    • , Kathleen M. McCreary
    • , Simranjeet Singh
    • , Jinsong Xu
    • , Berend T. Jonker
    • , Roland K. Kawakami
    • , Aaron Bostwick
    • , Eli Rotenberg
    •  & Chris Jozwiak
  • Letter |

    Whether spatial order is required for structures that support topological modes remains unclear. Amorphous arrangements of interacting gyroscopes suggest that topology arises in materials for which the only design principle is the local connectivity.

    • Noah P. Mitchell
    • , Lisa M. Nash
    • , Daniel Hexner
    • , Ari M. Turner
    •  & William T. M. Irvine
  • Letter |

    Stanene is a single sheet of tin atoms. Here, it is shown that a few stacked layers of stanene can be a superconductor. Changing the thickness of the substrate modifies the form of superconductivity and critical temperature.

    • Menghan Liao
    • , Yunyi Zang
    • , Zhaoyong Guan
    • , Haiwei Li
    • , Yan Gong
    • , Kejing Zhu
    • , Xiao-Peng Hu
    • , Ding Zhang
    • , Yong Xu
    • , Ya-Yu Wang
    • , Ke He
    • , Xu-Cun Ma
    • , Shou-Cheng Zhang
    •  & Qi-Kun Xue
  • Letter |

    Turbulence in pipe flows causes substantial friction (and therefore economic) losses. An experimental and numerical study now shows a solution might be to initially enhance turbulent mixing, which subsequently leads to a collapse of turbulence.

    • Jakob Kühnen
    • , Baofang Song
    • , Davide Scarselli
    • , Nazmi Burak Budanur
    • , Michael Riedl
    • , Ashley P. Willis
    • , Marc Avila
    •  & Björn Hof
  • Letter |

    Triply degenerate electronic structure—three-component fermions—protected by crystal symmetries is observed in tungsten carbide. The observed Fermi arcs associated with the surface states provide evidence of the non-trivial topology of the states.

    • J.-Z. Ma
    • , J.-B. He
    • , Y.-F. Xu
    • , B. Q. Lv
    • , D. Chen
    • , W.-L. Zhu
    • , S. Zhang
    • , L.-Y. Kong
    • , X. Gao
    • , L.-Y. Rong
    • , Y.-B. Huang
    • , P. Richard
    • , C.-Y. Xi
    • , E. S. Choi
    • , Y. Shao
    • , Y.-L. Wang
    • , H.-J. Gao
    • , X. Dai
    • , C. Fang
    • , H.-M. Weng
    • , G.-F. Chen
    • , T. Qian
    •  & H. Ding
  • Review |

    This Review Article outlines the exploration of the interplay between parity–time symmetry and non-Hermitian physics in optics, plasmonics and optomechanics.

    • Ramy El-Ganainy
    • , Konstantinos G. Makris
    • , Mercedeh Khajavikhan
    • , Ziad H. Musslimani
    • , Stefan Rotter
    •  & Demetrios N. Christodoulides
  • Letter |

    A combined theoretical and experimental study of plasmonic nanostructures reveals a self-hybridization effect that arises from the non-Hermitian eigenmodes of localized surface plasmons.

    • Hugo Lourenço-Martins
    • , Pabitra Das
    • , Luiz H. G. Tizei
    • , Raphaël Weil
    •  & Mathieu Kociak
  • Letter |

    Non-equilibrium signatures of topology—the appearance, movement and annihilation of vortices in a cold-atom system—are identified, showing that topological phase can emerge dynamically from a non-topological state.

    • N. Fläschner
    • , D. Vogel
    • , M. Tarnowski
    • , B. S. Rem
    • , D.-S. Lühmann
    • , M. Heyl
    • , J. C. Budich
    • , L. Mathey
    • , K. Sengstock
    •  & C. Weitenberg
  • Article |

    Nanomagnets are often used to build artificial systems that are geometrically frustrated, but when quasiperiodic ordering is introduced, an unusual ground state can form, with an ordered skeletal structure surrounding groups of degenerate macrospins.

    • Dong Shi
    • , Zoe Budrikis
    • , Aaron Stein
    • , Sophie A. Morley
    • , Peter D. Olmsted
    • , Gavin Burnell
    •  & Christopher H. Marrows