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  • Article
    | Open Access

    Spin-momentum locking is a fundamental property of condensed matter systems. Here, the authors evidence parallel Weyl spin-momentum locking of multifold fermions in the chiral topological semimetal PtGa.

    • Jonas A. Krieger
    • , Samuel Stolz
    •  & Niels B. M. Schröter

  • Article
    | Open Access

    Chiral antiferromagnets, such as Mn3Pt, host a variety of transport phenomena arising due to the chiral arrangement of the spins. Herein, the authors find two contributions to the anomalous hall effect in Mn3Pt, and through comparison with other chiral antiferromagnets develop a universal scaling law for the anomalous hall effect in chiral antiferromagnets.

    • Shijie Xu
    • , Bingqian Dai
    •  & Weisheng Zhao

  • Article
    | Open Access

    Given that entangled states can store more information than unentangled ones, it would be natural to assume that highly-entangled data would always enhance capabilities of quantum machine learning models. Here, the authors show that this is not the case, in particular when the allowed number of measurements to incoherently learn quantum dynamics is low

    • Xinbiao Wang
    • , Yuxuan Du
    •  & Dacheng Tao

  • Article
    | Open Access

    Caustics, as a unique type of singularity in wave phenomena, occur in diverse physical systems. Here, the authors realize multi-dimensional customization of caustics with 3D-printed metasurfaces. This arbitrary caustic engineering is poised to bring new revolutions to many domains.

    • Xiaoyan Zhou
    • , Hongtao Wang
    •  & Cheng-Wei Qiu

  • Article
    | Open Access

    A promising strategy for scaling trapped-ion-based quantum technologies is to use fully integrated optical waveguides to deliver light to numerous ions at multiple sites. Here, the authors. optically address three ions using on-chip waveguides to deliver three distinct wavelengths per ion, and perform Rabi flopping on each ion simultaneously.

    • Joonhyuk Kwon
    • , William J. Setzer
    •  & Hayden J. McGuinness

  • Article
    | Open Access

    The fluctuating dynamics of a passive object suspended in an active fluid can provide fundamental insight into the fundamental non-equilibrium behavior of the fluid. Singh and Chaudhuri theoretically investigate the dynamics of a passive deformable droplet in active nematic turbulence and show how the motion of the droplet is influenced by the interplay of spatial correlations of the flow and the size of the droplet.

    • Chamkor Singh
    •  & Abhishek Chaudhuri

  • Article
    | Open Access

    Understanding loss mechanisms in superconducting circuits is crucial for improving qubit coherence. Here the authors use a multimode resonator to study loss mechanisms in thin-film superconducting circuits and demonstrate on-chip quantum memories with lifetimes exceeding 1ms, using Ta thin-films and high-temperature substrate annealing

    • Suhas Ganjam
    • , Yanhao Wang
    •  & Robert J. Schoelkopf

  • Article
    | Open Access

    Previous studies of the effects of strain on charge density waves have mostly focused on uniaxial strain. Here the authors use a biaxial-strain device to demonstrate switching of the charge density wave orientation, as well as a strong linear increase of the transition temperature while the gap seems to saturate.

    • A. Gallo–Frantz
    • , V. L. R. Jacques
    •  & D. Le Bolloc’h

  • Article
    | Open Access

    The study of defects and boundaries in the context of conformal field theory is important but challenging in dimensions higher than two. Here the authors use the recently developed fuzzy sphere regularization approach to perform non-perturbative analysis of defect conformal field theory in 3D

    • Liangdong Hu
    • , Yin-Chen He
    •  & W. Zhu

  • Article
    | Open Access

    Ising machines have been usually applied to predefined combinatorial problems due to their distinct physical properties. The authors introduce an approach that utilizes equilibrium propagation for the training of Ising machines and achieves high accuracy performance on classification tasks.

    • Jérémie Laydevant
    • , Danijela Marković
    •  & Julie Grollier

  • Article
    | Open Access

    Photonic time crystal refers to a material whose dielectric properties oscillate in time. Here the authors theoretically show such behaviour in the excitonic insulator candidate Ta2NiSe5 under optical excitation and use it to explain the enhanced THz reflectivity recently observed in pump-probe experiments

    • Marios H. Michael
    • , Sheikh Rubaiat Ul Haque
    •  & Eugene Demler

  • Article
    | Open Access

    When studying nematic ordering of cells in a monolayer, it is commonly assumed that the principal stress and cell shape axes are tightly coupled. Here, the authors measure cell shape and cell-generated contractile stresses and show that cells in monolayers form correlated, dynamic domains in which the stresses are systematically misaligned with the cell bodies.

    • Mehrana R. Nejad
    • , Liam J. Ruske
    •  & Julia M. Yeomans

  • Article
    | Open Access

    In most materials, the hall conductivity has a scaling to the longitudinal resistance that varies between linear and quadratic. Here, Zhang et al demonstrate a hall conductivity proportional to the fifth power of the longitudinal conductivity in Mn3Si2Te6, which they attribute to enhanced force on charge carriers due to chiral orbital currents.

    • Yu Zhang
    • , Yifei Ni
    •  & Gang Cao

  • Article
    | Open Access

    Magnetostatic wave filters have a wide working frequency range, small size and high Q-factor, however, they are hampered by the need for a large external electromagnet to provide a bias magnetic field. Here, Du et al demonstrate an extremely small and low power external magnetic bias assembly with zero static power consumption, removing the need for bulky and energy intensive electromagnets.

    • Xingyu Du
    • , Mohamad Hossein Idjadi
    •  & Roy H. Olsson III

  • Article
    | Open Access

    The electronic correlation-driven Mott metal-insulator transition has been predicted in a 2D metal-organic framework with a kagome structure. Here the authors synthesize such a system in experiment and demonstrate an electrostatically controlled Mott transition.

    • Benjamin Lowe
    • , Bernard Field
    •  & Agustin Schiffrin

  • Article
    | Open Access

    Confining atoms to lattices can modify their interaction and collision. Here the authors show suppression of dipolar relaxation in the form of reduced decay rate of dysprosium atoms in quasi-2D regime.

    • Pierre Barral
    • , Michael Cantara
    •  & Wolfgang Ketterle

  • Article
    | Open Access

    Phase singularities are intimately related to orbital angular momentum. Direct local imaging of orbital angular momentum effects at the nanoscale remains challenging. Here, the authors demonstrate via scanning tunnelling microscopy that inter-orbital angular momentum scatterings induced by asymmetric potentials can modulate the phase singularities and induce single-wavefront dislocations.

    • Yi-Wen Liu
    • , Yu-Chen Zhuang
    •  & Lin He

  • Article
    | Open Access

    Manipulating the electronic properties of topological semimetals is a central goal of modern condensed matter physics research. Here, the authors demonstrate how a high-entropy engineering approach allows for the tuning of the crystal structure and the electronic states in a Dirac semimetal.

    • Antu Laha
    • , Suguru Yoshida
    •  & Zhiqiang Mao

  • Article
    | Open Access

    Point defects in 2D semiconductors have potential for quantum computing applications, but their controlled design and synthesis remains challenging. Here, the authors identify and fabricate a promising quantum defect in 2D WS2 via high-throughput computational screening and scanning tunnelling microscopy.

    • John C. Thomas
    • , Wei Chen
    •  & Geoffroy Hautier

  • Article
    | Open Access

    Quantum annealing is usually discussed as a means of finding an optimal solution for a problem where there are many local minima, such as the travelling salesman. Here, Zhao et al present an intriguing example of quantum annealing in the case of the frustrated magnet α-CoV2O6, where a transverse magnetic field triggers the quantum annealing process.

    • Yuqian Zhao
    • , Zhaohua Ma
    •  & Yuesheng Li

  • Article
    | Open Access

    Recently, excitons with unconventional properties were reported in a van der Waals antiferromagnet NiPS3. Here, using resonant inelastic x-ray scattering, the authors show that the formation of these excitons is primarily driven by Hund’s coupling and that they propagate similarly to two-magnon excitations.

    • W. He
    • , Y. Shen
    •  & M. P. M. Dean

  • Article
    | Open Access

    The thermal Hall effect is a novel probe of neutral excitations in insulators; however, the mechanism behind one type of neutral excitations – phonons – is still unclear. Here the authors observe a planar thermal Hall effect in the Kitaev candidate material Na2Co2TeO6 and proposed that it is generated by phonons.

    • Lu Chen
    • , Étienne Lefrançois
    •  & Louis Taillefer

  • Article
    | Open Access

    Normal mode analysis is a crucial step in structural biology, but is based on an expensive diagonalisation of the system’s Hessian. Here the authors present INCHING, a GPU-based approach to accelerate this task up to >250 times over current methods for macromolecular assemblies.

    • Jordy Homing Lam
    • , Aiichiro Nakano
    •  & Vsevolod Katritch

  • Article
    | Open Access

    The authors experimentally study a chain of superconducting islands (SI) and quantum dots (QD), where a Bogoliubov quasiparticle occupies each SI. They demonstrate correlations between the quasiparticles in each SI mediated by a single spin on the QD, known as an “over-screened" doublet state of the QD.

    • Juan Carlos Estrada Saldaña
    • , Alexandros Vekris
    •  & Jesper Nygård

  • Article
    | Open Access

    Schools, flocks and related forms of collective behavior and collective locomotion involve complicated fluid dynamical interactions. Here, using a “mock flock" of robotic flappers, authors report that the interaction between leaders and followers is similar to one-way springs, leading to lattice-like self-organization but also a new type of traveling-wave disturbance.

    • Joel W. Newbolt
    • , Nickolas Lewis
    •  & Leif Ristroph

  • Article
    | Open Access

    Thin crystals grown on rigid spherical templates of increasing curvature exhibit increased protrusions. Here, the authors demonstrate the opposite curvature effect on the morphology of molecularly thin crystals grown within elastic fluid membranes, like those of biological cells.

    • Hao Wan
    • , Geunwoong Jeon
    •  & Maria M. Santore

  • Article
    | Open Access

    Large-scale eDMFT computation reveals that FeO undergoes a gradual orbitally selective insulator-metal transition across the extreme conditions of Earth’s interior, with implications for compositions and conductivity of the core-mantle boundary region.

    • Wai-Ga D. Ho
    • , Peng Zhang
    •  & Vasilije V. Dobrosavljevic

  • Article
    | Open Access

    F-actin architecture modulates transmission and generation of stresses in cells, yet its impact on myosin ATP hydrolysis remains unknown. The authors perform experiments measuring myosin ATP hydrolysis rates, showing that F-actin architecture can control myosin energy consumption.

    • Ryota Sakamoto
    •  & Michael P. Murrell

  • Article
    | Open Access

    Pulse tube refrigerators are a critical enabling technology for many disciplines that require low temperatures, including quantum computing. Here, the authors show that dynamically optimizing the acoustic parameters of the refrigerator can improve conventional cooldown speeds up to 3.5 times.

    • Ryan Snodgrass
    • , Vincent Kotsubo
    •  & Joel Ullom

  • Article
    | Open Access

    Measuring quantum entanglement remains a demanding task. The authors introduce two functions to quantify entanglement induced by fermionic or bosonic statistics, in transport experiments. Both functions, in theory and experiment, are remarkably resilient against the nonuniversal effects of interactions.

    • Gu Zhang
    • , Changki Hong
    •  & Yuval Gefen

  • Article
    | Open Access

    The authors characterize the phonon modes at the FeSe/SrTiO3 interface with atomically resolved electron energy loss spectroscopy and correlate them with accurate atomic structure in an electron microscope. They find several phonon modes highly localized at the interface, one of which engages in strong interactions with the electrons in FeSe.

    • Ruochen Shi
    • , Qize Li
    •  & Peng Gao

  • Article
    | Open Access

    All holographic displays and imaging techniques are fundamentally limited by the étendue supported by existing spatial light modulators. Here, the authors report on using artificial intelligence (AI) to learn an étendue expanding element that effectively increases étendue by two orders of magnitude.

    • Ethan Tseng
    • , Grace Kuo
    •  & Felix Heide

  • Article
    | Open Access

    MnBi2Te4 is an antiferromagnetic topological insulator. This combination of magnetic ordering and topological properties has resulted in intense interest, however, like many van der Waals materials, experimental results are hampered by fabrication difficulties. Here, Li, Wang, Lian et al. show that the fabrication process itself can result in mismatched thickness dependence of magneto-transport measurements. ‘

    • Yaoxin Li
    • , Yongchao Wang
    •  & Chang Liu

  • Article
    | Open Access

    In addition to its low-field superconducting state, UTe2 features a re-entrant superconducting state when high magnetic fields are applied at a particular range of angles. Here, the authors demonstrate that the high-field re-entrant superconducting state survives even when the low-field superconducting state is destroyed by disorder.

    • Corey E. Frank
    • , Sylvia K. Lewin
    •  & Nicholas P. Butch

  • Article
    | Open Access

    The authors study monolayer FeSe via scanning tunneling microscopy and simultaneous micron-scale-probe-based transport. They observe distinct superconducting phases in domains and on boundaries between domains, with different superconducting gaps and pairing temperatures.

    • Dapeng Zhao
    • , Wenqiang Cui
    •  & Qi-Kun Xue

  • Article
    | Open Access

    Many volatile elements are depleted in the bulk silicate Earth. Here, the authors found that these volatile elements tend to react with Fe under pressure and may be sequestered within Earth’s core by forming substitutional Fe alloys.

    • Yifan Tian
    • , Peiyu Zhang
    •  & Hanyu Liu

  • Article
    | Open Access

    Nearly a century after dark matter was proposed, yet its nature remains elusive. Here, authors present their dark photon dark matter search results using two atomic magnetometer arrays 1700 km apart in large magnetic shields and offer the strongest terrestrial constraint in this mass range to date.

    • Min Jiang
    • , Taizhou Hong
    •  & Jiangfeng Du

  • Article
    | Open Access

    Thurner and colleagues explore how economic shocks spread risk through the globalized economy. They find that rich countries expose poor countries stronger to systemic risk than vice-versa. The risk is highly concentrated, however higher risk levels are not compensated with a risk premium in GDP levels, nor higher GDP growth. The findings put the often-praised benefits for developing countries from globalized production in a new light, by relating them to risks involved in the production processes

    • Abhijit Chakraborty
    • , Tobias Reisch
    •  & Stefan Thurner

  • Article
    | Open Access

    Bound states in continuum have attracted attention in various platforms, and recently condensation of bound states in continuum polariton modes was demonstrated at low temperatures. Here the authors report the observation of such a state in a periodic air-hole perovskite-based photonic crystal at room temperature.

    • Xianxin Wu
    • , Shuai Zhang
    •  & Xinfeng Liu

  • Article
    | Open Access

    Phase diagrams of materials are typically based on a static order parameter, but it faces challenges when distinguishing subtle phase changes, such as re-ordering. Here the authors introduce a dynamic re-order parameter, in particular magnons, and illustrate it in a material with complex magnetic phases.

    • Byung Cheol Park
    • , Howon Lee
    •  & Taewoo Ha

  • Article
    | Open Access

    The problem of reversibility within general quantum resource theories is still an open one. Here, the authors prove that a reversible entanglement manipulation framework (and, consequently, the concept of entanglement entropy) can be formally established by adjusting the setting to allow for probabilistic operations

    • Bartosz Regula
    •  & Ludovico Lami

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