Latest Research

  • Article |

    By tuning the geometry of a two-dimensional sonic crystal, its one-dimensional helical edge states become gapped and zero-dimensional topological corner states emerge. The band topology is thus manifested in a hierarchy of dimensions.

    • Xiujuan Zhang
    • , Hai-Xiao Wang
    • , Zhi-Kang Lin
    • , Yuan Tian
    • , Biye Xie
    • , Ming-Hui Lu
    • , Yan-Feng Chen
    •  & Jian-Hua Jiang
  • Article |

    The same type of polymer network deforms cell membranes inward, to absorb external material, and outward, to facilitate signal transmission. Experiments and theory show that these deformations are regulated by membrane tension and network mesh size.

    • Camille Simon
    • , Rémy Kusters
    • , Valentina Caorsi
    • , Antoine Allard
    • , Majdouline Abou-Ghali
    • , John Manzi
    • , Aurélie Di Cicco
    • , Daniel Lévy
    • , Martin Lenz
    • , Jean-François Joanny
    • , Clément Campillo
    • , Julie Plastino
    • , Pierre Sens
    •  & Cécile Sykes
  • Article |

    A scattering resonance associated with quasi-bound diatomic levels trapped behind the centrifugal barrier has been observed in a quantum-degenerate potassium gas. Various measurements reveal the d-wave character of the collisions.

    • Xing-Can Yao
    • , Ran Qi
    • , Xiang-Pei Liu
    • , Xiao-Qiong Wang
    • , Yu-Xuan Wang
    • , Yu-Ping Wu
    • , Hao-Ze Chen
    • , Peng Zhang
    • , Hui Zhai
    • , Yu-Ao Chen
    •  & Jian-Wei Pan
  • Letter |

    The difference between the β-decay rate predicted for free neutrons and that measured in real nuclei is explained by first-principles calculations to arise from strong correlations and the weak-force coupling between nucleons.

    • P. Gysbers
    • , G. Hagen
    • , J. D. Holt
    • , G. R. Jansen
    • , T. D. Morris
    • , P. Navrátil
    • , T. Papenbrock
    • , S. Quaglioni
    • , A. Schwenk
    • , S. R. Stroberg
    •  & K. A. Wendt
  • Letter |

    The measured change in the fundamental frequency of a superconducting resonator coupled to a tunnel junction reveals a broadband constant Lamb shift, which is typically inaccessible in atomic systems.

    • Matti Silveri
    • , Shumpei Masuda
    • , Vasilii Sevriuk
    • , Kuan Y. Tan
    • , Máté Jenei
    • , Eric Hyyppä
    • , Fabian Hassler
    • , Matti Partanen
    • , Jan Goetz
    • , Russell E. Lake
    • , Leif Grönberg
    •  & Mikko Möttönen
  • Letter |

    Bacteria and other helical microswimmers are known to swim faster in non-Newtonian fluids. Coarse-grained simulations suggest the increase may be due to a polymer depletion effect near the body and flagellum, inducing a slip velocity at the surface.

    • Andreas Zöttl
    •  & Julia M. Yeomans
  • Article |

    In situ measurements based on coherent X-ray spectroscopy are performed during the epitaxial growth of gallium nitride films, revealing a memory effect in the arrangement of islands formed on successive crystal layers.

    • Guangxu Ju
    • , Dongwei Xu
    • , Matthew J. Highland
    • , Carol Thompson
    • , Hua Zhou
    • , Jeffrey A. Eastman
    • , Paul H. Fuoss
    • , Peter Zapol
    • , Hyunjung Kim
    •  & G. Brian Stephenson
  • Letter |

    A graphene-like two-dimensional sonic crystal, under uniaxial deformation, experiences a giant uniform pseudomagnetic field. This leads to the quantization of the cyclotron orbits—a kind of acoustic Landau level—that is observed here.

    • Xinhua Wen
    • , Chunyin Qiu
    • , Yajuan Qi
    • , Liping Ye
    • , Manzhu Ke
    • , Fan Zhang
    •  & Zhengyou Liu
  • Article |

    An interferometer device demonstrates the interference of fractional quantum Hall effect edge states. This is a big step towards braiding non-Abelian anyons.

    • J. Nakamura
    • , S. Fallahi
    • , H. Sahasrabudhe
    • , R. Rahman
    • , S. Liang
    • , G. C. Gardner
    •  & M. J. Manfra
  • Letter |

    Inelastic neutron scattering is used to probe the spin dynamics of molecular nanomagnets, but extensive supporting computations make the technique challenging. Proof-of-principle experiments now show that quantum computers may solve these computations efficiently.

    • A. Chiesa
    • , F. Tacchino
    • , M. Grossi
    • , P. Santini
    • , I. Tavernelli
    • , D. Gerace
    •  & S. Carretta
  • Letter |

    Triggered by the fluctuations of the electromagnetic vacuum, parametric down-conversion offers a new primary radiation standard based on quantum nonlinear optics.

    • Samuel Lemieux
    • , Enno Giese
    • , Robert Fickler
    • , Maria V. Chekhova
    •  & Robert W. Boyd
  • Article |

    Two-state micropatterns offer a unique platform to study cell migration. An equation of motion is inferred from a large ensemble of trajectories, revealing key differences in the nonlinear dynamics of healthy and cancerous cells.

    • David B. Brückner
    • , Alexandra Fink
    • , Christoph Schreiber
    • , Peter J. F. Röttgermann
    • , Joachim O. Rädler
    •  & Chase P. Broedersz
  • Article |

    A molecule placed in an optical microcavity behaves as a model two-level quantum system, as demonstrated via laser extinction and interaction with single photons.

    • Daqing Wang
    • , Hrishikesh Kelkar
    • , Diego Martin-Cano
    • , Dominik Rattenbacher
    • , Alexey Shkarin
    • , Tobias Utikal
    • , Stephan Götzinger
    •  & Vahid Sandoghdar
  • Letter |

    Collagen networks go from soft to rigid when strained, but in tissue they exist in a soft matrix. An enhanced stiffness and delayed strain-stiffening is now revealed in the composite, which may explain the remarkable sensitivity of living tissue.

    • Federica Burla
    • , Justin Tauber
    • , Simone Dussi
    • , Jasper van der Gucht
    •  & Gijsje H. Koenderink
  • Letter |

    The quantum Hall effect is thought to exist only in two-dimensional materials. Here, transport measurements show that thin graphite slabs have a 2.5-dimensional version, with a parity effect for samples with odd and even number of layers.

    • Jun Yin
    • , Sergey Slizovskiy
    • , Yang Cao
    • , Sheng Hu
    • , Yaping Yang
    • , Inna Lobanova
    • , Benjamin A. Piot
    • , Seok-Kyun Son
    • , Servet Ozdemir
    • , Takashi Taniguchi
    • , Kenji Watanabe
    • , Kostya S. Novoselov
    • , Francisco Guinea
    • , A. K. Geim
    • , Vladimir Fal’ko
    •  & Artem Mishchenko
  • Article |

    A spectral study on a ferromagnet/superconductor heterostructure reveals the interaction between the spin-wave excitations in a magnetically ordered system (magnons) and the magnetic flux quanta formed in a superconductor (fluxons).

    • O. V. Dobrovolskiy
    • , R. Sachser
    • , T. Brächer
    • , T. Böttcher
    • , V. V. Kruglyak
    • , R. V. Vovk
    • , V. A. Shklovskij
    • , M. Huth
    • , B. Hillebrands
    •  & A. V. Chumak
  • Article |

    In the early Universe, fluctuations in the neutrino density produced a distinct shift in the temporal phase of sound waves in the primordial plasma. The size of this phase shift has now been constrained through baryon acoustic oscillation data.

    • Daniel Baumann
    • , Florian Beutler
    • , Raphael Flauger
    • , Daniel Green
    • , Anže Slosar
    • , Mariana Vargas-Magaña
    • , Benjamin Wallisch
    •  & Christophe Yèche
  • Letter |

    By subjecting a Chern insulator to a circular drive, its geometrical and topological properties would be accessible from the spectroscopic response. This prediction is now confirmed in a Floquet topological system realized by ultracold fermionic atoms.

    • Luca Asteria
    • , Duc Thanh Tran
    • , Tomoki Ozawa
    • , Matthias Tarnowski
    • , Benno S. Rem
    • , Nick Fläschner
    • , Klaus Sengstock
    • , Nathan Goldman
    •  & Christof Weitenberg
  • Letter |

    The authors show that a magnetic material with kagome lattice planes hosts a flat band near the Fermi level. Electrons in this band exhibit ‘negative magnetism’ due to the Berry curvature.

    • Jia-Xin Yin
    • , Songtian S. Zhang
    • , Guoqing Chang
    • , Qi Wang
    • , Stepan S. Tsirkin
    • , Zurab Guguchia
    • , Biao Lian
    • , Huibin Zhou
    • , Kun Jiang
    • , Ilya Belopolski
    • , Nana Shumiya
    • , Daniel Multer
    • , Maksim Litskevich
    • , Tyler A. Cochran
    • , Hsin Lin
    • , Ziqiang Wang
    • , Titus Neupert
    • , Shuang Jia
    • , Hechang Lei
    •  & M. Zahid Hasan
  • Article |

    Symmetry labels of materials under certain space groups can be used to indicate their band topology. Integrating that into first-principles band-structure calculations, new topological materials with a diversity of topological phenomena are discovered.

    • Feng Tang
    • , Hoi Chun Po
    • , Ashvin Vishwanath
    •  & Xiangang Wan
  • Letter |

    Spectral study on 36,37,38Ca isotopes and calculations based on density functional theory reveal the interplay between charge radii and nucleonic pairing correlations.

    • A. J. Miller
    • , K. Minamisono
    • , A. Klose
    • , D. Garand
    • , C. Kujawa
    • , J. D. Lantis
    • , Y. Liu
    • , B. Maaß
    • , P. F. Mantica
    • , W. Nazarewicz
    • , W. Nörtershäuser
    • , S. V. Pineda
    • , P.-G. Reinhard
    • , D. M. Rossi
    • , F. Sommer
    • , C. Sumithrarachchi
    • , A. Teigelhöfer
    •  & J. Watkins
  • Letter |

    Axial fields couple to the states of different chiralities with opposite signs. In an acoustic Weyl system, the implementation of such fields induces chiral Landau levels, which is now observed experimentally.

    • Valerio Peri
    • , Marc Serra-Garcia
    • , Roni Ilan
    •  & Sebastian D. Huber
  • Article |

    The authors use surface acoustic waves, focused in a Gaussian geometry, to manipulate the spin state of divacancy defects in silicon carbide via mechanical driving. They demonstrate that shear strain is important in controlling the spin transitions.

    • Samuel J. Whiteley
    • , Gary Wolfowicz
    • , Christopher P. Anderson
    • , Alexandre Bourassa
    • , He Ma
    • , Meng Ye
    • , Gerwin Koolstra
    • , Kevin J. Satzinger
    • , Martin V. Holt
    • , F. Joseph Heremans
    • , Andrew N. Cleland
    • , David I. Schuster
    • , Giulia Galli
    •  & David D. Awschalom
  • Article |

    Actomyosin networks with rapid turnover self-organize within droplets, forming a dynamic steady-state with persistent flows. The networks exhibit homogeneous, density-independent contraction, implying that active stress scales with viscosity.

    • Maya Malik-Garbi
    • , Niv Ierushalmi
    • , Silvia Jansen
    • , Enas Abu-Shah
    • , Bruce L. Goode
    • , Alex Mogilner
    •  & Kinneret Keren
  • Letter |

    Experiments on microtubule-based nematics, together with active gel theory, suggest that the length scale associated with active turbulence is selected at its onset—balancing activity with the stabilizing effects of nematic elasticity and geometry.

    • Berta Martínez-Prat
    • , Jordi Ignés-Mullol
    • , Jaume Casademunt
    •  & Francesc Sagués
  • Letter |

    Quantum stochastic resonance, in which the quantum fluctuation represents the noise needed to amplify an otherwise weak signal, is reported in the charging and discharging of a single-electron quantum dot.

    • Timo Wagner
    • , Peter Talkner
    • , Johannes C. Bayer
    • , Eddy P. Rugeramigabo
    • , Peter Hänggi
    •  & Rolf J. Haug
  • Article |

    Complex networks with identical topology may exhibit different dynamics. A systematic analysis of signal propagation in networks reveals the existence of three specific dynamic regimes that connect topological features to dynamic patterns.

    • Chittaranjan Hens
    • , Uzi Harush
    • , Simi Haber
    • , Reuven Cohen
    •  & Baruch Barzel
  • Letter |

    The magnetic moment of the neutron-rich exotic 75Cu nucleus is measured using rare isotope beams with a high spin alignment, clarifying how the evolution of the nuclear shell and the shape deformations are connected.

    • Y. Ichikawa
    • , H. Nishibata
    • , Y. Tsunoda
    • , A. Takamine
    • , K. Imamura
    • , T. Fujita
    • , T. Sato
    • , S. Momiyama
    • , Y. Shimizu
    • , D. S. Ahn
    • , K. Asahi
    • , H. Baba
    • , D. L. Balabanski
    • , F. Boulay
    • , J. M. Daugas
    • , T. Egami
    • , N. Fukuda
    • , C. Funayama
    • , T. Furukawa
    • , G. Georgiev
    • , A. Gladkov
    • , N. Inabe
    • , Y. Ishibashi
    • , T. Kawaguchi
    • , T. Kawamura
    • , Y. Kobayashi
    • , S. Kojima
    • , A. Kusoglu
    • , I. Mukul
    • , M. Niikura
    • , T. Nishizaka
    • , A. Odahara
    • , Y. Ohtomo
    • , T. Otsuka
    • , D. Ralet
    • , G. S. Simpson
    • , T. Sumikama
    • , H. Suzuki
    • , H. Takeda
    • , L. C. Tao
    • , Y. Togano
    • , D. Tominaga
    • , H. Ueno
    • , H. Yamazaki
    •  & X. F. Yang
  • Letter |

    Efficient spin injection across ferromagnet/semiconductor interfaces is a major goal for future spintronic approaches. Ultrafast spectroscopy now reveals strong spin currents to be inducible in monolayer MoS2 by ultralow-intensity laser pulses.

    • Liang Cheng
    • , Xinbo Wang
    • , Weifeng Yang
    • , Jianwei Chai
    • , Ming Yang
    • , Mengji Chen
    • , Yang Wu
    • , Xiaoxuan Chen
    • , Dongzhi Chi
    • , Kuan Eng Johnson Goh
    • , Jian-Xin Zhu
    • , Handong Sun
    • , Shijie Wang
    • , Justin C. W. Song
    • , Marco Battiato
    • , Hyunsoo Yang
    •  & Elbert E. M. Chia
  • Letter |

    A new form of charge ordering is observed in a cuprate superconductor. At low doping, a fully rotationally symmetric ordering appears before becoming locked to the Cu–O bond directions at high doping. The link between charge correlations and fermiology give a perspective on the phase diagram.

    • Mingu Kang
    • , Jonathan Pelliciari
    • , Alex Frano
    • , Nicholas Breznay
    • , Enrico Schierle
    • , Eugen Weschke
    • , Ronny Sutarto
    • , Feizhou He
    • , Padraic Shafer
    • , Elke Arenholz
    • , Mo Chen
    • , Keto Zhang
    • , Alejandro Ruiz
    • , Zeyu Hao
    • , Sylvia Lewin
    • , James Analytis
    • , Yoshiharu Krockenberger
    • , Hideki Yamamoto
    • , Tanmoy Das
    •  & Riccardo Comin
  • Letter |

    Observations reveal that electrons in Earth’s outer radiation belt possess a spectrum that partially rises with increasing energy, contrary to common beliefs. Plasma hiss waves scattered off electrons are found to be the origin of this phenomenon.

    • H. Zhao
    • , B. Ni
    • , X. Li
    • , D. N. Baker
    • , W. R. Johnston
    • , W. Zhang
    • , Z. Xiang
    • , X. Gu
    • , A. N. Jaynes
    • , S. G. Kanekal
    • , J. B. Blake
    • , S. G. Claudepierre
    • , M. A. Temerin
    • , H. O. Funsten
    • , G. D. Reeves
    •  & A. J. Boyd
  • Letter |

    Report of the likely observation of a Mott insulator in trilayer graphene with a moiré potential. The Mott state can be tuned between different filling fractions via gating, which will enable the careful study of this paradigmatic many-body state.

    • Guorui Chen
    • , Lili Jiang
    • , Shuang Wu
    • , Bosai Lyu
    • , Hongyuan Li
    • , Bheema Lingam Chittari
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Zhiwen Shi
    • , Jeil Jung
    • , Yuanbo Zhang
    •  & Feng Wang
  • Article |

    Detailed neutron scattering, magnetic susceptibility and muon spin relaxation studies indicate the absence of long-range magnetic order in the quantum magnet TbInO3 down to 0.46 K— an observation consistent with quantum spin liquid behaviour.

    • Lucy Clark
    • , Gabriele Sala
    • , Dalini D. Maharaj
    • , Matthew B. Stone
    • , Kevin S. Knight
    • , Mark T. F. Telling
    • , Xueyun Wang
    • , Xianghan Xu
    • , Jaewook Kim
    • , Yanbin Li
    • , Sang-Wook Cheong
    •  & Bruce D. Gaulin
  • Article |

    Efficient photon pair sources connecting visible and telecommunication spectral regions are essential for viable long-distance fibre optic quantum communication architectures. A nanophotonic device is presented that allows kilometre-scale time–energy entanglement as an application.

    • Xiyuan Lu
    • , Qing Li
    • , Daron A. Westly
    • , Gregory Moille
    • , Anshuman Singh
    • , Vikas Anant
    •  & Kartik Srinivasan
  • Letter |

    There has latterly been a renewed interest in collective excitations in condensed matter systems. Now, spectroscopic evidence for the so-called Leggett mode is revealed in the superconductor MgB2.

    • Flavio Giorgianni
    • , Tommaso Cea
    • , Carlo Vicario
    • , Christoph P. Hauri
    • , Wenura K. Withanage
    • , Xiaoxing Xi
    •  & Lara Benfatto
  • Article |

    Parity-breaking antisymmetric spin exchange interaction is reported in clusters of five qubits within superconducting circuits. This allows the creation of chiral spin dynamics, with potential for future quantum simulations of chiral molecules.

    • Da-Wei Wang
    • , Chao Song
    • , Wei Feng
    • , Han Cai
    • , Da Xu
    • , Hui Deng
    • , Hekang Li
    • , Dongning Zheng
    • , Xiaobo Zhu
    • , H. Wang
    • , Shi-Yao Zhu
    •  & Marlan O. Scully
  • Article |

    A spectroscopic study of strontium titanate provides a method for transferring the vibrational energy of a low-frequency phonon mode to higher-frequency modes, with the potential to access elusive ‘silent’ modes.

    • M. Kozina
    • , M. Fechner
    • , P. Marsik
    • , T. van Driel
    • , J. M. Glownia
    • , C. Bernhard
    • , M. Radovic
    • , D. Zhu
    • , S. Bonetti
    • , U. Staub
    •  & M. C. Hoffmann
  • Article |

    Changes in membrane curvature influence how migrating cells navigate their environment. Experiments and modelling reveal that dynamic reorganization of the actin cytoskeleton in response to these changes provides cells with a sensing mechanism.

    • Tianchi Chen
    • , Andrew Callan-Jones
    • , Eduard Fedorov
    • , Andrea Ravasio
    • , Agustí Brugués
    • , Hui Ting Ong
    • , Yusuke Toyama
    • , Boon Chuan Low
    • , Xavier Trepat
    • , Tom Shemesh
    • , Raphaël Voituriez
    •  & Benoît Ladoux
  • Article |

    A major challenge for achieving useful thermonuclear fusion regimes is heating plasma to reactive temperature conditions. It is demonstrated experimentally how energetic ions, generated via neutral beam injection, can be exploited for this process.

    • R. M. Magee
    • , A. Necas
    • , R. Clary
    • , S. Korepanov
    • , S. Nicks
    • , T. Roche
    • , M. C. Thompson
    • , M. W. Binderbauer
    •  & T. Tajima
  • Article |

    While topological states are often characterized by their global properties related to the topological invariants, the introduced real-space topological markers provide new insights to these states.

    • M. D. Caio
    • , G. Möller
    • , N. R. Cooper
    •  & M. J. Bhaseen
  • Letter |

    Quantum interference between electronic pathways is generally difficult to observe in solid-state systems. Such interference is, however, now characterized in the second-harmonic generation from transition metal dichalcogenides, even at room temperature.

    • Kai-Qiang Lin
    • , Sebastian Bange
    •  & John M. Lupton