Communications Physics最新文献

Exceptional points preceding and enabling spontaneous symmetry breaking. 在自发对称性破缺之前并使之成为可能的异常点。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-01-14 DOI: 10.1038/s42005-026-02491-0

Lewis Hill, Julius T Gohsrich, Alekhya Ghosh, Jacob Fauman, Pascal Del'Haye, Flore K Kunst

引用次数: 0

The microscale organization of directed hypergraphs. 有向超图的微观组织。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-01-07 DOI: 10.1038/s42005-025-02472-9

Quintino Francesco Lotito, Alberto Vendramini, Alberto Montresor, Federico Battiston

{"title":"The microscale organization of directed hypergraphs.","authors":"Quintino Francesco Lotito, Alberto Vendramini, Alberto Montresor, Federico Battiston","doi":"10.1038/s42005-025-02472-9","DOIUrl":"https://doi.org/10.1038/s42005-025-02472-9","url":null,"abstract":"Many real-world systems exhibit higher-order interactions beyond pairwise links. Such interactions are modeled by undirected hypergraphs where edges can connect any number of vertices, but without capturing the directional nature of many real-world interactions. Directed hypergraphs overcome this limitation by distinguishing source and target sets within each hyperedge, enabling analysis of directional information flow. Here, we provide a framework to characterize the structural organization of directed higher-order networks at their microscale. We extract the fingerprint of a directed hypergraph, capturing the frequency of hyperedges with a certain source and target sizes, and use this information to compute differences in higher-order connectivity patterns among real-world systems. Then, we investigate the overlap among sources and targets to reveal recurring sets of co-sending and co-receiving nodes. We define reciprocity in hypergraphs using exact, strong, and weak definitions to quantify the extent to which hyperedges are reciprocated. Finally, we extend motif analysis to identify recurring interaction patterns and extract the building blocks of directed hypergraphs. We validate our framework on empirical datasets, including Bitcoin transactions, metabolic networks, and citation data, revealing structural principles behind the organization of real-world systems.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"9 1","pages":"43"},"PeriodicalIF":5.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12915522/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146225418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase retrieval via gain-based photonic XY-Hamiltonian optimization. 基于增益的光子xy -哈密顿优化相位恢复。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-02-03 DOI: 10.1038/s42005-026-02525-7

Richard Zhipeng Wang, Guangyao Li, Silvia Gentilini, Davide Pierangeli, Marcello Calvanese Strinati, Claudio Conti, Natalia G Berloff

{"title":"Phase retrieval via gain-based photonic XY-Hamiltonian optimization.","authors":"Richard Zhipeng Wang, Guangyao Li, Silvia Gentilini, Davide Pierangeli, Marcello Calvanese Strinati, Claudio Conti, Natalia G Berloff","doi":"10.1038/s42005-026-02525-7","DOIUrl":"https://doi.org/10.1038/s42005-026-02525-7","url":null,"abstract":"Phase-retrieval from coded diffraction patterns (CDP) is important to X-ray crystallography, diffraction tomography and astronomical imaging, yet remains a hard, non-convex inverse problem. We show that CDP recovery can be reformulated exactly as the minimization of a continuous-variable XY Hamiltonian and solved by gain-based photonic networks. The coupled-mode equations we exploit are the natural mean-field dynamics of exciton-polariton condensate lattices, coupled-laser arrays and driven photon Bose-Einstein condensates, while other hardware such as the spatial photonic Ising machine can implement the same update rule through high-speed digital feedback, preserving full optical parallelism. Numerical experiments on images, two- and three-dimensional vortices and unstructured complex data demonstrate that the gain-based solver consistently outperforms the state-of-the-art Relaxed-Reflect-Reflect (RRR) algorithm in the medium-noise regime (signal-to-noise ratios 10-40 dB) and retains this advantage as problem size scales. Because the physical platform performs the continuous optimisation, our approach promises fast, energy-efficient phase retrieval on readily available photonic hardware.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"9 1","pages":"85"},"PeriodicalIF":5.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12984011/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147467136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental evidence for granular shear-flow instability in the Epstein regime. Epstein状态下颗粒剪切流动不稳定性的实验证据。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-02-12 DOI: 10.1038/s42005-026-02531-9

Holly L Capelo, Jean-David Bodénan, Martin Jutzi, Jonas Kühn, Clément Surville, Lucio Mayer, Maria Schönbächler, Yann Alibert, Nicolas Thomas, Antoine Pommerol

引用次数: 0

Sequential buckling in fluid-filled cylindrical shells. 充液圆柱壳的顺序屈曲。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-03-31 DOI: 10.1038/s42005-026-02589-5

Shresht Jain, Finn Box, Martin Quinn, Chris Johnson, Draga Pihler-Puzović

{"title":"Sequential buckling in fluid-filled cylindrical shells.","authors":"Shresht Jain, Finn Box, Martin Quinn, Chris Johnson, Draga Pihler-Puzović","doi":"10.1038/s42005-026-02589-5","DOIUrl":"https://doi.org/10.1038/s42005-026-02589-5","url":null,"abstract":"From oil drums to flying rockets, cylindrical shells are valued for their load-carrying capacity. When sufficiently compressed, they buckle, with the phenomenon taking many forms, from periodic diamond-shaped buckles to localized elephant footing. The precise physical mechanisms of buckling are different, for example, in empty shells and shells with a solid core. However, despite the abundance of liquid-filled shells in industry and everyday life, their buckling is largely overlooked. Here, we compress beverage cans and identify a sequential buckling instability that localizes circumferential rings above a critical level of compression. Combining measurements of the anisotropic material properties of the shell with modelling based on the nonlinear Swift-Hohenberg equations, we demonstrate that fluid-filled shells can support a multiplicity of localized solutions, which are induced by the nonlinear hoop stress of the shell and sequentialize through homoclinic snaking. This establishes a rare link between idealized mathematical studies of pattern formation and physical realizations of spatially-localized buckling phenomena. These findings serve as a blueprint for exploring localized patterns induced by material nonlinearities, near-incompressibility and pressurization in other physical systems.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"9 1","pages":"114"},"PeriodicalIF":5.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13098793/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147764796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-Hermitian impurity problem. 非厄米杂质问题。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-03-14 DOI: 10.1038/s42005-026-02558-y

Emmanouil T Kokkinakis, Ioannis Komis, Konstantinos G Makris, Eleftherios N Economou

{"title":"Non-Hermitian impurity problem.","authors":"Emmanouil T Kokkinakis, Ioannis Komis, Konstantinos G Makris, Eleftherios N Economou","doi":"10.1038/s42005-026-02558-y","DOIUrl":"https://doi.org/10.1038/s42005-026-02558-y","url":null,"abstract":"The problem of a single Hermitian impurity has long served as a cornerstone in condensed matter physics, offering fundamental insights into the mechanisms of Anderson localization. Yet, despite the increased interest in the spectral and localization properties of non-Hermitian lattices with defects, the non-Hermitian extension of the single impurity problem remains largely unexplored. In this work, we investigate the role of a single complex impurity in one-, two-, and three-dimensional infinite tight-binding lattices. Our study reveals a series of counterintuitive phenomena, including regions where localization vanishes and re-emerges as the impurity strength varies. Next, we study the corresponding finite-sized lattices, which are highly relevant to experimental realizations in readily accessible photonic platforms, revealing a variety of exotic features, such as scale-free localized states and peculiar cross-shaped localized eigenstates, whose profiles deviate from the conventional exponential localization. This work paves the way for future studies on transport phenomena in non-Hermitian disordered lattices.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"9 1","pages":"152"},"PeriodicalIF":5.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13132722/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147811754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

One-milligram torsional pendulum toward experiments at the quantum-gravity interface. 一毫克的扭摆朝向量子引力界面的实验。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-01-30 DOI: 10.1038/s42005-026-02514-w

Sofia Agafonova, Pere Rosselló, Manuel Mekonnen, Onur Hosten

引用次数: 0

Efficient spin-orbit torque switching in a magnetic insulator via ultrathin Pt and light metal overlayers. 通过超薄铂和轻金属层实现磁绝缘体的高效自旋轨道转矩开关。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-02-10 DOI: 10.1038/s42005-026-02539-1

Stefano Fedel, Can O Avci

{"title":"Efficient spin-orbit torque switching in a magnetic insulator via ultrathin Pt and light metal overlayers.","authors":"Stefano Fedel, Can O Avci","doi":"10.1038/s42005-026-02539-1","DOIUrl":"https://doi.org/10.1038/s42005-026-02539-1","url":null,"abstract":"Spin-orbit torques (SOTs) are essential for electrically controlling magnetic order in spintronic devices. Platinum (Pt) is ubiquitous for SOT generation due to its strong bulk spin Hall and interfacial Rashba-Edelstein effects. Here, we revisit this established viewpoint by investigating ultrathin Pt films interfaced with a typical magnetic insulator, terbium iron garnet. We find that few-atom-thick, nanogranular Pt exhibits exceptionally efficient SOT-induced switching that cannot be explained by these conventional mechanisms. This enhancement is attributed to the granular morphology of sputtered Pt, which activates two complementary mechanisms: enhanced spin-orbit scattering at grain boundaries, leading to an increased effective spin Hall angle, and localized current density amplification due to non-uniform conduction paths. Furthermore, adding a titanium (Ti) or manganese (Mn) overlayer to thin Pt enhances the switching efficiency, indicating an active contribution from light metals via orbital current generation. These findings uncover key SOT pathways in ultrathin heterostructures and provide insights for optimizing spin-orbitronic device performance and enabling energy-efficient magnetic switching.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"9 1","pages":"99"},"PeriodicalIF":5.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13002463/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147497744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconfigurable free-space mode generation and detection enabled by an active photonic integrated circuit coupled to a passive mode-selective interface. 可重构的自由空间模式生成和检测由一个有源光子集成电路耦合到一个无源模式选择接口。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-03-05 DOI: 10.1038/s42005-026-02522-w

Aleksandr Boldin, Ultan J Daly, Maziyar Milanizadeh, Rakan Alsaigh, Zhaozhong Chen, David A B Miller, Francesco Morichetti, Martin P J Lavery

{"title":"Reconfigurable free-space mode generation and detection enabled by an active photonic integrated circuit coupled to a passive mode-selective interface.","authors":"Aleksandr Boldin, Ultan J Daly, Maziyar Milanizadeh, Rakan Alsaigh, Zhaozhong Chen, David A B Miller, Francesco Morichetti, Martin P J Lavery","doi":"10.1038/s42005-026-02522-w","DOIUrl":"https://doi.org/10.1038/s42005-026-02522-w","url":null,"abstract":"Optical mode-sorting and generation are used for a wide range of quantum, sensing and communication applications. High-speed switching between mode sets would allow photonics systems to react to changes in propagation channel in real time. Photonic-Integrated-Circuits (PICs) with phased arrays can rapidly reconfigure their function at MHz depending on installed modulators. As a reconfigurable photonic system, PIC can reconfigure significantly fast than spatial light modulators that are limited to less than 1 kHz. However, phased-arrays are bound by two-dimensional Nyquist-sampling limit and spacing between array elements leads to grating lobe formation, where many additional array elements are needed to mitigate these effects. We leverage a passive Multiple-Plane-Light-Converters (MPLC) as an Optical Mode-Selective Interface (OMSI), coupling a basis set of free-space Hermite Gaussian (HG) modes directly into an active optical mesh implemented on a PIC. The active mesh can generate or sort any free-space mode-set that can be created by a linear superposition of 15 HG modes. Without changing the physical system, we demonstrate the generation and sorting of four orthogonal mode groups, each with 15 modes, achieving a mean intermodal crosstalk for sorting of -22 dB. This approach can allow for rapidly reconfigurable mode-sorters that could be used for quantum or classical communications or sensing applications.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"9 1","pages":"133"},"PeriodicalIF":5.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13083242/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147721919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Projected entangled pair states for lattice gauge theories with dynamical fermions. 具有动态费米子的点阵规范理论的投射纠缠对态。

IF 5.8 1区物理与天体物理

Communications Physics Pub Date : 2026-01-01 Epub Date: 2026-01-08 DOI: 10.1038/s42005-025-02482-7

Ariel Kelman, Umberto Borla, Patrick Emonts, Erez Zohar

引用次数: 0