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  • Shifting computational boundaries for complex organic materials
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-12
    R. Matthias Geilhufe; Bart Olsthoorn; Alexander V. Balatsky

    Methodology adapted from data science sparked the field of materials informatics, and materials databases are at the heart of it. Applying artificial intelligence to these databases will allow the prediction of the properties of complex organic crystals.

    更新日期:2021-01-12
  • Truth and beauty in physics and biology
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-11
    Ben D. MacArthur

    Physicists and biologists have different conceptions of beauty. A better appreciation of these differences may bring the disciplines closer and help develop a more integrated view of life.

    更新日期:2021-01-11
  • Nuclear espionage
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-11
    Alexandra Zidovska

    Biophysicists have long sought to probe the physical properties of the cell nucleus, but the sheer size of this tiny organelle puts limits on its exploration. The coarsening of biomolecular droplets looks set to give us the inside scoop.

    更新日期:2021-01-11
  • Hofstadter subband ferromagnetism and symmetry-broken Chern insulators in twisted bilayer graphene
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-11
    Yu Saito; Jingyuan Ge; Louk Rademaker; Kenji Watanabe; Takashi Taniguchi; Dmitry A. Abanin; Andrea F. Young

    When the twist angle between two layers of graphene is approximately 1.1°, interlayer tunnelling and rotational misalignment conspire to create a pair of flat bands1 that are known to host various insulating, superconducting and magnetic states when they are partially filled2,3,4,5,6,7. Most work has focused on the zero-magnetic-field phase diagram, but here we show that twisted bilayer graphene in

    更新日期:2021-01-11
  • Ultrafast phononic switching of magnetization
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-11
    A. Stupakiewicz; C. S. Davies; K. Szerenos; D. Afanasiev; K. S. Rabinovich; A. V. Boris; A. Caviglia; A. V. Kimel; A. Kirilyuk

    Identifying efficient pathways to control and modify the order parameter of a macroscopic phase in materials is an important ongoing challenge. One way to do this is via the excitation of a high-frequency mode that couples to the order, and this is the ultimate goal of the field of ultrafast phase transitions1,2. This is an especially interesting research direction in magnetism, where the coupling

    更新日期:2021-01-11
  • Chromatin mechanics dictates subdiffusion and coarsening dynamics of embedded condensates
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-11
    Daniel S. W. Lee; Ned S. Wingreen; Clifford P. Brangwynne

    DNA is organized into chromatin, a complex polymeric material that stores information and controls gene expression. An emerging mechanism for biological organization, particularly within the crowded nucleus, is biomolecular phase separation into condensed droplets of protein and nucleic acids. However, the way in which chromatin impacts the dynamics of phase separation and condensate formation is poorly

    更新日期:2021-01-11
  • Virtually a measurement
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-08
    Wendy S. Parker

    Simulations are as much a part of science as hypothesis and experiment. But can their outcomes be considered observations? Wendy S. Parker investigates.

    更新日期:2021-01-08
  • A guide for open access
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-06

    Along with five other journals in the Nature Portfolio, Nature Physics will pilot a new Guided Open Access trial in 2021. We explain how it works.

    更新日期:2021-01-06
  • The mother of all techniques
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Rebecca A. Metzler

    Iridescent mother of pearl sports a complex structure that eludes standard imaging techniques. Now, a nanotomographic method provides high resolution 3D insight into the topological defects underpinning this composite material.

    更新日期:2021-01-04
  • Excellence and power in the Black physics community
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Charles D. Brown; Eileen Gonzales

    #BlackInPhysics Week aimed to build community among physicists by celebrating, supporting and increasing the visibility of Black physicists. The week accomplished all of this, and more.

    更新日期:2021-01-04
  • A massive squeeze
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Mario Gely; Gary A. Steele

    A Cooper-pair box qubit is used to squeeze the energy of a heavy oscillating membrane towards a quantum energy eigenstate, bringing measurements of how mass and quantum mechanics interact one step closer.

    更新日期:2021-01-04
  • Measurements make the phase
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Brayden Ware; Romain Vasseur

    Measuring a quantum state often enough can leave you with a completely different phase of matter. Mix in competing measurements and you may find yourself with an entire phase diagram of dynamical quantum states and transitions.

    更新日期:2021-01-04
  • The quick drive to pseudo-equilibrium
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Lea F. Santos

    A clever application of nuclear magnetic resonance techniques offers a glimpse at a quantum system driven at high frequency, resulting in Floquet prethermalization — a quasi-steady state that persists for a very long time.

    更新日期:2021-01-04
  • Observation of stationary spontaneous Hawking radiation and the time evolution of an analogue black hole
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Victor I. Kolobov; Katrine Golubkov; Juan Ramón Muñoz de Nova; Jeff Steinhauer

    The emission of Hawking radiation from a black hole was predicted to be stationary, which is necessary for the correspondence between Hawking radiation and blackbody radiation. Spontaneous Hawking radiation was observed in analogue black holes in atomic Bose–Einstein condensates, although the stationarity was not probed. Here we confirm that the spontaneous Hawking radiation is stationary by observing

    更新日期:2021-01-04
  • Dynamics of topological defects and structural synchronization in a forming periodic tissue
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Maksim Beliaev; Dana Zöllner; Alexandra Pacureanu; Paul Zaslansky; Igor Zlotnikov

    Living organisms form a large variety of hierarchically structured extracellular functional tissues. Remarkably, these materials exhibit regularity and structural coherence across multiple length scales, far beyond the size of a single cell. Here, synchrotron-based nanotomographic imaging in combination with machine-learning-based segmentation is used to reveal the structural synchronization process

    更新日期:2021-01-04
  • Isotropic Pauli-limited superconductivity in the infinite-layer nickelate Nd 0.775 Sr 0.225 NiO 2
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Bai Yang Wang; Danfeng Li; Berit H. Goodge; Kyuho Lee; Motoki Osada; Shannon P. Harvey; Lena F. Kourkoutis; Malcolm R. Beasley; Harold Y. Hwang

    The recent observation of superconductivity in thin-film infinite-layer nickelates1,2,3 offers a different angle from which to investigate superconductivity in layered oxides4. A wide range of candidate models have been proposed5,6,7,8,9,10, which emphasize single- or multi-orbital electronic structure, Kondo or Hund’s coupling and analogies to cuprates. Further experimental characterization of the

    更新日期:2021-01-04
  • Non-classical energy squeezing of a macroscopic mechanical oscillator
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    X. Ma; J. J. Viennot; S. Kotler; J. D. Teufel; K. W. Lehnert

    Optomechanics and electromechanics have made it possible to prepare macroscopic mechanical oscillators in their quantum ground states1, in quadrature-squeezed states2 and in entangled states of motion3. However, the effectively linear interaction between motion and light or electricity precludes access to the broader class of quantum states of motion, such as cat states or energy-squeezed states. Strong

    更新日期:2021-01-04
  • Energy spread minimization in a beam-driven plasma wakefield accelerator
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    R. Pompili; D. Alesini; M. P. Anania; M. Behtouei; M. Bellaveglia; A. Biagioni; F. G. Bisesto; M. Cesarini; E. Chiadroni; A. Cianchi; G. Costa; M. Croia; A. Del Dotto; D. Di Giovenale; M. Diomede; F. Dipace; M. Ferrario; A. Giribono; V. Lollo; L. Magnisi; M. Marongiu; A. Mostacci; L. Piersanti; G. Di Pirro; S. Romeo; A. R. Rossi; J. Scifo; V. Shpakov; C. Vaccarezza; F. Villa; A. Zigler

    Next-generation plasma-based accelerators can push electron bunches to gigaelectronvolt energies within centimetre distances1,2. The plasma, excited by a driver pulse, generates large electric fields that can efficiently accelerate a trailing witness bunch3,4,5, enabling the realization of laboratory-scale applications ranging from high-energy colliders6 to ultrabright light sources7. So far, several

    更新日期:2021-01-04
  • Bidirectional dynamic scaling in an isolated Bose gas far from equilibrium
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Jake A. P. Glidden; Christoph Eigen; Lena H. Dogra; Timon A. Hilker; Robert P. Smith; Zoran Hadzibabic

    Understanding and classifying non-equilibrium many-body phenomena, analogously to the classification of equilibrium states of matter into universality classes1,2, is an outstanding problem in physics. From stellar matter to financial markets, any many-body system can be out of equilibrium in a myriad of ways, and many are difficult to experiment on. It is therefore a major goal to establish universal

    更新日期:2021-01-04
  • Hybridized quadrupolar excitations in the spin-anisotropic frustrated magnet FeI 2
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Xiaojian Bai; Shang-Shun Zhang; Zhiling Dun; Hao Zhang; Qing Huang; Haidong Zhou; Matthew B. Stone; Alexander I. Kolesnikov; Feng Ye; Cristian D. Batista; Martin Mourigal

    Magnetic order is usually associated with well-defined magnon excitations. Exotic magnetic fluctuations with fractional, topological or multipolar character have been proposed for unconventional forms of magnetic matter such as spin liquids1. As a result, considerable effort has been expended to search for, and uncover, low-spin materials with suppressed dipolar order at low temperatures2,3. However

    更新日期:2021-01-04
  • Experimental identification of two distinct skyrmion collapse mechanisms
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Florian Muckel; Stephan von Malottki; Christian Holl; Benjamin Pestka; Marco Pratzer; Pavel F. Bessarab; Stefan Heinze; Markus Morgenstern

    Magnetic skyrmions are key candidates for applications in memory, logic and neuromorphic computing. An essential property is their topological protection that is caused by the swirling spin texture and described by a robust integer winding number. However, this protection is strictly enforced only in the continuum, and so the atomic lattice present in all real materials leaves a loophole for switching

    更新日期:2021-01-04
  • Floquet prethermalization in dipolar spin chains
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Pai Peng; Chao Yin; Xiaoyang Huang; Chandrasekhar Ramanathan; Paola Cappellaro

    Periodically driven Floquet quantum systems could provide a promising platform to investigate novel physics out of equilibrium1, but the drive generically heats the system to a featureless infinite-temperature state2,3,4. Fortunately, for high driving frequency, the heat absorption rate has been theoretically predicted to be exponentially small, giving rise to a long-lived prethermal regime that exhibits

    更新日期:2021-01-04
  • A charge-density-wave topological semimetal
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Wujun Shi; Benjamin J. Wieder; Holger L. Meyerheim; Yan Sun; Yang Zhang; Yiwei Li; Lei Shen; Yanpeng Qi; Lexian Yang; Jagannath Jena; Peter Werner; Klaus Koepernik; Stuart Parkin; Yulin Chen; Claudia Felser; B. Andrei Bernevig; Zhijun Wang

    Topological physics and strong electron–electron correlations in quantum materials are typically studied independently. However, there have been rapid recent developments in quantum materials in which topological phase transitions emerge when the single-particle band structure is modified by strong interactions. Here we demonstrate that the room-temperature phase of (TaSe4)2I is a Weyl semimetal with

    更新日期:2021-01-04
  • Classical algorithms for quantum mean values
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Sergey Bravyi; David Gosset; Ramis Movassagh

    Quantum algorithms hold the promise of solving certain computational problems dramatically faster than their classical counterparts. The latest generation of quantum processors with ~50 qubits are expected to be at the brink of outperforming classical computers. However, due to the lack of fault tolerance, the qubits can be operated for only a few time steps, making the quantum circuits shallow in

    更新日期:2021-01-04
  • Non-Majorana states yield nearly quantized conductance in proximatized nanowires
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    P. Yu; J. Chen; M. Gomanko; G. Badawy; E. P. A. M. Bakkers; K. Zuo; V. Mourik; S. M. Frolov

    Semiconductor nanowires with proximity-induced superconductivity are leading contenders for manifesting Majorana fermions in condensed matter1,2,3,4,5. However, unambiguous detection of these quasiparticles is controversial6, and one proposed method is to show that the peak in the conductance at zero applied bias is quantized to the value of 2e2/h (refs. 7,8,9,10). This has been reported previously11

    更新日期:2021-01-04
  • Mechanical feedback promotes bacterial adaptation to antibiotics
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Shiladitya Banerjee; Klevin Lo; Nikola Ojkic; Roisin Stephens; Norbert F. Scherer; Aaron R. Dinner

    To maximize their fitness, cells must be able to respond effectively to stresses. This demands making trade-offs between processes that conserve resources to promote survival, and processes that use resources to promote growth and division. Understanding the nature of these trade-offs and the physics underlying them remains an outstanding challenge. Here we combine single-cell experiments and theoretical

    更新日期:2021-01-04
  • Phase coherence in out-of-equilibrium supersolid states of ultracold dipolar atoms
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    P. Ilzhöfer; M. Sohmen; G. Durastante; C. Politi; A. Trautmann; G. Natale; G. Morpurgo; T. Giamarchi; L. Chomaz; M. J. Mark; F. Ferlaino

    A supersolid is a counterintuitive phase of matter that combines the global phase coherence of a superfluid with a crystal-like self-modulation in space. Recently, such states have been experimentally realized using dipolar quantum gases. Here we investigate the response of a dipolar supersolid to an interaction quench that shatters the global phase coherence. We identify a parameter regime in which

    更新日期:2021-01-04
  • Vibrational coherent control of localized d – d electronic excitation
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Alexandre Marciniak; Stefano Marcantoni; Francesca Giusti; Filippo Glerean; Giorgia Sparapassi; Tobia Nova; Andrea Cartella; Simone Latini; Francesco Valiera; Angel Rubio; Jeroen van den Brink; Fabio Benatti; Daniele Fausti

    Addressing the role of quantum coherence in the interplay between the different matter constituents (electrons, phonons and spin) is a critical step towards understanding transition metal oxides and designing complex materials with new functionalities. Here we use coherent vibrational control of on-site d–d electronic transitions in a model edge-sharing insulating transition metal oxide (CuGeO3) to

    更新日期:2021-01-04
  • Measurement-induced topological entanglement transitions in symmetric random quantum circuits
    Nat. Phys. (IF 19.256) Pub Date : 2021-01-04
    Ali Lavasani; Yahya Alavirad; Maissam Barkeshli

    Random quantum circuits, in which an array of qubits is subjected to a series of randomly chosen unitary operations, have provided key insights into the dynamics of many-body quantum entanglement. Recent work has shown that interleaving the unitary operations with single-qubit measurements can drive a transition between high- and low-entanglement phases. Here we study a class of symmetric random quantum

    更新日期:2021-01-04
  • Gently stirred not shaken
    Nat. Phys. (IF 19.256) Pub Date : 2020-12-21
    Daniel Rolles

    Manipulating weakly bound helium dimers with ultrafast laser pulses reveals their quantum behaviour. This method opens a route towards studying the low-energy dynamics of other exotic and fragile quantum states.

    更新日期:2020-12-21
  • Ultrafast manipulation of the weakly bound helium dimer
    Nat. Phys. (IF 19.256) Pub Date : 2020-12-21
    Maksim Kunitski; Qingze Guan; Holger Maschkiwitz; Jörg Hahnenbruch; Sebastian Eckart; Stefan Zeller; Anton Kalinin; Markus Schöffler; Lothar Ph. H. Schmidt; Till Jahnke; Dörte Blume; Reinhard Dörner

    Controlling the interactions between atoms with external fields opened up new branches in physics ranging from strongly correlated atomic systems to ideal Bose1 and Fermi2 gases and Efimov physics3,4. Such control usually prepares samples that are stationary or evolve adiabatically in time. In contrast, in molecular physics, external ultrashort laser fields are used to create anisotropic potentials

    更新日期:2020-12-21
  • Fixed-time descriptive statistics underestimate extremes of epidemic curve ensembles
    Nat. Phys. (IF 19.256) Pub Date : 2020-12-08
    Jonas L. Juul; Kaare Græsbøll; Lasse Engbo Christiansen; Sune Lehmann

    The uncertainty associated with epidemic forecasts is often simulated with ensembles of epidemic trajectories based on combinations of parameters. We show that the standard approach for summarizing such ensembles systematically suppresses critical epidemiological information.

    更新日期:2020-12-08
  • Zero-refractive-index materials and topological photonics
    Nat. Phys. (IF 19.256) Pub Date : 2020-12-07
    S. A. R. Horsley; M. Woolley

    The refractive index is one of the most basic optical properties of a material and its interaction with light. Modern materials engineering—particularly the concept of metamaterials—has made it necessary to consider its subtleties, including anisotropy and complex values. Here we re-examine the refractive index and find a general way to calculate the direction-dependent refractive index and the condition

    更新日期:2020-12-07
  • Don’t let lecture notes rot
    Nat. Phys. (IF 19.256) Pub Date : 2020-12-02

    A scientist’s legacy is defined not only by their research but also by their teaching. Stronger efforts should be made to preserve and celebrate the exposition of physics at all levels.

    更新日期:2020-12-02
  • Simplify your life
    Nat. Phys. (IF 19.256) Pub Date : 2020-12-02
    Gordon W. F. Drake; Eite Tiesinga

    Within the Hartree atomic unit systems, the Schrödinger equation becomes parameter free. But there’s more to it than making a student’s life easier, as Gordon Drake and Eite Tiesinga recount.

    更新日期:2020-12-02
  • Topology and broken Hermiticity
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-30
    Corentin Coulais; Romain Fleury; Jasper van Wezel

    Topology and symmetry have emerged as compelling guiding principles to predict and harness the propagation of waves in natural and artificial materials. Be it for quantum particles (such as electrons) or classical waves (such as light, sound or mechanical motion), these concepts have so far been mostly developed in idealized scenarios, in which the wave amplitude is neither attenuated nor amplified

    更新日期:2020-12-01
  • Experimental observation of vortex rings in a bulk magnet
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-30
    Claire Donnelly; Konstantin L. Metlov; Valerio Scagnoli; Manuel Guizar-Sicairos; Mirko Holler; Nicholas S. Bingham; Jörg Raabe; Laura J. Heyderman; Nigel R. Cooper; Sebastian Gliga

    Vortex rings are remarkably stable structures that occur in a large variety of systems, such as in turbulent gases (where they are at the origin of weather phenomena)1, fluids (with implications for biology)2, electromagnetic discharges3 and plasmas4. Although vortex rings have also been predicted to exist in ferromagnets5, they have not yet been observed. Using X-ray magnetic nanotomography6, we imaged

    更新日期:2020-12-01
  • Author Correction: 15 years of Nature Physics
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-24
    Alison Wright; Ed Gerstner; Richard Brierley; Andreas Trabesinger; May Chiao; Iulia Georgescu; Bart Verberck; Luke Fleet; Abigail Klopper; Andrea Taroni; Federico Levi; Yun Li; Jan Philip Kraack; David Abergel; Stefanie Reichert; Nina Meinzer; Elizaveta Dubrovina

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.

    更新日期:2020-11-25
  • Living proof of effective defects
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-23
    M.-A. Fardin; B. Ladoux

    A class of biological matter including elongated cells and filaments can be understood in the framework of active nematic liquid crystals. Within these systems, topological defects emerge and give rise to remarkable collective behaviours.

    更新日期:2020-11-23
  • Topological defects promote layer formation in Myxococcus xanthus colonies
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-23
    Katherine Copenhagen; Ricard Alert; Ned S. Wingreen; Joshua W. Shaevitz

    The soil bacterium Myxococcus xanthus lives in densely packed groups that form dynamic three-dimensional patterns in response to environmental changes, such as droplet-like fruiting bodies during starvation1. The development of these multicellular structures begins with the sequential formation of cell layers in a process that is poorly understood2. Here, using confocal three-dimensional imaging, we

    更新日期:2020-11-23
  • Bacteria solve the problem of crowding by moving slowly
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-23
    O. J. Meacock; A. Doostmohammadi; K. R. Foster; J. M. Yeomans; W. M. Durham

    Bacteria commonly live attached to surfaces in dense collectives containing billions of cells1. While it is known that motility allows these groups to expand en masse into new territory2,3,4,5, how bacteria collectively move across surfaces under such tightly packed conditions remains poorly understood. Here we combine experiments, cell tracking and individual-based modelling to study the pathogen

    更新日期:2020-11-23
  • Topological defects in the nematic order of actin fibres as organization centres of Hydra morphogenesis
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-23
    Yonit Maroudas-Sacks; Liora Garion; Lital Shani-Zerbib; Anton Livshits; Erez Braun; Kinneret Keren

    Animal morphogenesis arises from the complex interplay between multiple mechanical and biochemical processes with mutual feedback. Developing an effective, coarse-grained description of morphogenesis is essential for understanding how these processes are coordinated across scales to form robust, functional outcomes. Here we show that the nematic order of the supracellular actin fibres in regenerating

    更新日期:2020-11-23
  • High-harmonic generation from topological surface states
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-23
    Ya Bai; Fucong Fei; Shuo Wang; Na Li; Xiaolu Li; Fengqi Song; Ruxin Li; Zhizhan Xu; Peng Liu

    Three-dimensional topological insulators are a phase of matter that hosts unique spin-polarized gapless surface states that are protected by time-reversal symmetry. They exhibit unconventional charge and spin transport properties1,2. Intense laser fields can drive ballistic charge dynamics in Dirac bands3,4 or they can coherently steer spin5 and valley pseudospin6. Similarly, high-harmonic generation

    更新日期:2020-11-23
  • A solid look at molecules
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-16
    Laura Cattaneo

    When molecular model systems, such as polycyclic aromatic hydrocarbons, are ionized by ultrashort extreme ultraviolet pulses, their relaxation path proceeds via electron–phonon scattering, linking molecules to typical solid-state matter behaviour.

    更新日期:2020-11-16
  • Ultrafast dynamics of correlation bands following XUV molecular photoionization
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-16
    M. Hervé; V. Despré; P. Castellanos Nash; V. Loriot; A. Boyer; A. Scognamiglio; G. Karras; R. Brédy; E. Constant; A. G. G. M. Tielens; A. I. Kuleff; F. Lépine

    Modern ultrashort X-ray/XUV (extreme ultraviolet) sources provide unique opportunities to investigate the primary reactions of matter upon energetic excitation. Understanding these processes in molecules on ultrafast timescales is required to improve bespoke high-energy radiation detectors, nanomedicine schemes or to study the molecular composition of interstellar media. However, current experiments

    更新日期:2020-11-16
  • Ultrafast spin current generated from an antiferromagnet
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-16
    Hongsong Qiu; Lifan Zhou; Caihong Zhang; Jingbo Wu; Yuanzhe Tian; Shaodong Cheng; Shaobo Mi; Haibin Zhao; Qi Zhang; Di Wu; Biaobing Jin; Jian Chen; Peiheng Wu

    Antiferromagnets (AFMs) have the potential to push spintronic devices from a static condition or gigahertz frequency range to the terahertz range for the sake of high-speed processing. However, the insensitivity of AFMs to magnetic fields makes the manipulation of spin currents difficult. The ultrafast generation of the spin current in ferromagnet/heavy-metal (HM) structures has received a lot of attention

    更新日期:2020-11-16
  • Contact between nucleons
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-09
    Michael Urban

    The contact formalism describes short-range correlations, which play a crucial role in nuclear systems. Initially introduced for ultracold atoms, its generalization to the nuclear case was now validated by ab initio calculations.

    更新日期:2020-11-09
  • Many-body factorization and position–momentum equivalence of nuclear short-range correlations
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-09
    R. Cruz-Torres; D. Lonardoni; R. Weiss; M. Piarulli; N. Barnea; D. W. Higinbotham; E. Piasetzky; A. Schmidt; L. B. Weinstein; R. B. Wiringa; O. Hen

    While mean-field approximations, such as the nuclear shell model, provide a good description of many bulk nuclear properties, they fail to capture the important effects of nucleon–nucleon correlations such as the short-distance and high-momentum components of the nuclear many-body wave function1. Here, we study these components using the effective pair-based generalized contact formalism2,3 and ab

    更新日期:2020-11-09
  • Author Correction: Imaging emergent heavy Dirac fermions of a topological Kondo insulator
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-04
    Harris Pirie; Yu Liu; Anjan Soumyanarayanan; Pengcheng Chen; Yang He; M. M. Yee; P. F. S. Rosa; J. D. Thompson; Dae-Jeong Kim; Z. Fisk; Xiangfeng Wang; Johnpierre Paglione; Dirk K. Morr; M. H. Hamidian; Jennifer E. Hoffman

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.

    更新日期:2020-11-04
  • Author Correction: High-fidelity entanglement and detection of alkaline-earth Rydberg atoms
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-04
    Ivaylo S. Madjarov; Jacob P. Covey; Adam L. Shaw; Joonhee Choi; Anant Kale; Alexandre Cooper; Hannes Pichler; Vladimir Schkolnik; Jason R. Williams; Manuel Endres

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.

    更新日期:2020-11-04
  • Publisher Correction: Interacting topological edge channels
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-04
    Jonas Strunz; Jonas Wiedenmann; Christoph Fleckenstein; Lukas Lunczer; Wouter Beugeling; Valentin L. Müller; Pragya Shekhar; Niccolò Traverso Ziani; Saquib Shamim; Johannes Kleinlein; Hartmut Buhmann; Björn Trauzettel; Laurens W. Molenkamp

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.

    更新日期:2020-11-04
  • Disentangling scaling arguments to empower complex systems analysis
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-02
    Marc Timme; Malte Schröder

    Scaling arguments provide valuable analysis tools across physics and complex systems yet are often employed as one generic method, without explicit reference to the various mathematical concepts underlying them. A careful understanding of these concepts empowers us to unlock their full potential.

    更新日期:2020-11-02
  • The sound of weights and measures
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-02
    Noa Hegesh

    In first-century China, emperor Wang Mang standardized weights and measures in his newly established dynasty. Noa Hegesh tells the story of sound as the basis for this standardization.

    更新日期:2020-11-02
  • In this galaxy far, far away
    Nat. Phys. (IF 19.256) Pub Date : 2020-11-02

    The Nobel Prize in Physics 2020 has been awarded to Roger Penrose for his work on black hole formation, and to Andrea Ghez and Reinhard Genzel for their observation of a supermassive compact object at the Galactic Centre.

    更新日期:2020-11-02
  • Clock comparison using black holes
    Nat. Phys. (IF 19.256) Pub Date : 2020-10-29
    Rüdiger Haas

    Observing accreting black holes in the early Universe allows precise comparison of clocks over intercontinental distances on Earth. This is achieved with a novel observation strategy using the next generation of very long baseline interferometry systems.

    更新日期:2020-10-30
  • Publisher Correction: Ultrasound evidence for a two-component superconducting order parameter in Sr 2 RuO 4
    Nat. Phys. (IF 19.256) Pub Date : 2020-10-28
    S. Benhabib; C. Lupien; I. Paul; L. Berges; M. Dion; M. Nardone; A. Zitouni; Z. Q. Mao; Y. Maeno; A. Georges; L. Taillefer; C. Proust

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.

    更新日期:2020-10-29
  • The Heisenberg limit for laser coherence
    Nat. Phys. (IF 19.256) Pub Date : 2020-10-26
    Travis J. Baker; Seyed N. Saadatmand; Dominic W. Berry; Howard M. Wiseman

    Quantum optical coherence can be quantified only by accounting for both the particle- and wave-nature of light. For an ideal laser beam1,2,3, the coherence can be thought of roughly as the number of photons emitted consecutively into the beam with the same phase. This number, \({\mathfrak{C}}\), can be much larger than the number of photons in the laser itself, μ. The limit for an ideal laser was thought

    更新日期:2020-10-28
  • Isotopy and energy of physical networks
    Nat. Phys. (IF 19.256) Pub Date : 2020-10-19
    Yanchen Liu; Nima Dehmamy; Albert-László Barabási

    While the structural characteristics of a network are uniquely determined by its adjacency matrix1,2,3, in physical networks, such as the brain or the vascular system, the network’s three-dimensional layout also affects the system’s structure and function. We lack, however, the tools to distinguish physical networks with identical wiring but different geometrical layouts. To address this need, here

    更新日期:2020-10-19
  • Resonant phase-matching between a light wave and a free-electron wavefunction
    Nat. Phys. (IF 19.256) Pub Date : 2020-10-12
    Raphael Dahan; Saar Nehemia; Michael Shentcis; Ori Reinhardt; Yuval Adiv; Xihang Shi; Orr Be’er; Morgan H. Lynch; Yaniv Kurman; Kangpeng Wang; Ido Kaminer

    Quantum light–matter interactions of bound electron systems have been studied extensively. By contrast, quantum interactions of free electrons with light have only become accessible in recent years, following the discovery of photon-induced near-field electron microscopy (PINEM). So far, the fundamental free electron–light interaction in all PINEM experiments has remained weak due to its localized

    更新日期:2020-10-12
  • Directional self-locomotion of active droplets enabled by nematic environment
    Nat. Phys. (IF 19.256) Pub Date : 2020-10-12
    Mojtaba Rajabi; Hend Baza; Taras Turiv; Oleg D. Lavrentovich

    Active matter composed of self-propelled interacting units holds a major promise for the extraction of useful work from its seemingly chaotic dynamics. Streamlining active matter is especially important at the microscale, where the viscous forces prevail over inertia and transport requires a non-reciprocal motion. Here we report that microscopic active droplets representing aqueous dispersions of swimming

    更新日期:2020-10-12
Contents have been reproduced by permission of the publishers.
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