Nature Physics最新文献_第8页

American science needs an executive branch constrained by checks and balances 美国的科学需要一个受制衡的行政部门

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-28 DOI: 10.1038/s41567-026-03414-0

Andrew Leifer, Thierry Emonet, Andrea Liu, Sidney Robert Nagel

引用次数: 0

Electric-field control of coherent ferron oscillations 相干铁子振荡的电场控制

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-27 DOI: 10.1038/s41567-026-03406-0

Baolong Zhang, Ruihuan Duan, Sobhan Subhra Mishra, Sambhu Jana, Jonghyeon Kim, Thomas Tan Caiwei, Yi Ji Tan, Wenhao Wang, Pang Teng Chen Ietro, Zheng Liu, Ranjan Singh

{"title":"Electric-field control of coherent ferron oscillations","authors":"Baolong Zhang, Ruihuan Duan, Sobhan Subhra Mishra, Sambhu Jana, Jonghyeon Kim, Thomas Tan Caiwei, Yi Ji Tan, Wenhao Wang, Pang Teng Chen Ietro, Zheng Liu, Ranjan Singh","doi":"10.1038/s41567-026-03406-0","DOIUrl":"10.1038/s41567-026-03406-0","url":null,"abstract":"Ferrons are collective excitations of electric polarization in ferroelectrics and constitute the electric analogue of magnons. Although recent studies have inferred ferron behaviour through electrical transport measurements, their non-equilibrium dynamics, coherent radiation and direct electrical control remain unexplored. Here we demonstrate real-time far-field generation, detection and non-volatile electric-field control of coherent ferron oscillations in layered ferroelectric NbOX2 (where X = I, Br or Cl). By utilizing the coupling between soft phonons and ferroelectric order, we observed multiple giant ferronic modes that generated intense narrowband terahertz radiation with emission efficiencies up to five orders of magnitude higher per unit thickness than state-of-the-art semiconductor terahertz emitters. We further demonstrate direct non-volatile electric-field switching of ferron oscillations, in which the switched state persists even after the electric field is removed, thereby establishing dynamic control of coherent ferronic states. The observation of electrically tunable ferron modes enables both light- and field-driven control of quantum order, with direct implications for ultrafast photonics, coherent on-chip terahertz technologies and next-generation wireless communication systems. Understanding the non-equilibrium dynamics of ferrons—collective excitations of electric polarization—is crucial for device applications. Now electric-field control of coherent ferron oscillations is demonstrated in a layered ferroelectric.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"22 10","pages":"1624-1632"},"PeriodicalIF":18.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decaying and expanding Erk gradients process memory of skeletal size during zebrafish fin regeneration 斑马鱼鳍再生过程中Erk梯度的衰减和扩大对骨骼大小的记忆

IF 19.6 1区物理与天体物理

Nature Physics Pub Date : 2026-08-24 DOI: 10.1038/s41567-026-03426-w

Ashley Rich, Ziqi Lu, Alessandro De Simone, Lucas Garcia, Jacqueline Janssen, Kazunori Ando, Jianhong Ou, Massimo Vergassola, Kenneth D. Poss, Stefano Di Talia

{"title":"Decaying and expanding Erk gradients process memory of skeletal size during zebrafish fin regeneration","authors":"Ashley Rich, Ziqi Lu, Alessandro De Simone, Lucas Garcia, Jacqueline Janssen, Kazunori Ando, Jianhong Ou, Massimo Vergassola, Kenneth D. Poss, Stefano Di Talia","doi":"10.1038/s41567-026-03426-w","DOIUrl":"https://doi.org/10.1038/s41567-026-03426-w","url":null,"abstract":"Amputated salamander limbs or fish fins precisely regenerate to their pre-injury size, providing a paradigm for positional memory. Although this phenomenon has been appreciated for centuries, how position-dependent cues control tissue growth remains unresolved. Here we quantify extracellular signal-regulated kinase (Erk) activity in whole populations of osteoblasts during zebrafish fin regeneration. We show that Erk activity scales with the amount of amputated tissue, predicts the likelihood of osteoblast cycling and predicts the size of regenerated skeletal structures. We find that osteoblast Erk activity depends on fibroblast growth factor receptor signalling and organizes into millimetre-long gradients spanning from the distal tip to the amputation site. Mathematical modelling suggests gradients are established by acute, distally restricted deposition of ligand, whose activity is long-lived and transported by tissue growth. This mechanism is supported by the observed scaling of the expression of essential epidermal ligand Fgf20a with extents of amputation. Our work provides evidence that the localized, scaled expression of pro-regenerative ligands instructs long-range signalling and cycling to control size in regenerating appendages.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"38 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sound protection for electron spins 对电子自旋的良好保护

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-24 DOI: 10.1038/s41567-026-03365-6

Ryuichi Ohta

引用次数: 0

Real-space imaging of moiré-confined excitons in twisted bilayer MoS2 扭曲双分子层二硫化钼中莫伊莫尔晶格约束激子的实空间成像

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-24 DOI: 10.1038/s41567-026-03425-x

Laurens J. M. Westenberg, Lumen Eek, Jort D. Verbakel, Kevin Vonk, Stijn J. H. Borggreve, Kenji Watanabe, Takashi Taniguchi, Paul de Boeij, Rodrigo Arouca, Cristiane Morais Smith, Pantelis Bampoulis

{"title":"Real-space imaging of moiré-confined excitons in twisted bilayer MoS2","authors":"Laurens J. M. Westenberg, Lumen Eek, Jort D. Verbakel, Kevin Vonk, Stijn J. H. Borggreve, Kenji Watanabe, Takashi Taniguchi, Paul de Boeij, Rodrigo Arouca, Cristiane Morais Smith, Pantelis Bampoulis","doi":"10.1038/s41567-026-03425-x","DOIUrl":"10.1038/s41567-026-03425-x","url":null,"abstract":"Twisted two-dimensional semiconductors generate a moiré landscape that confines excitons—bound electron–hole pairs—into programmable lattices, and this offers opportunities for efficient light sources, sensing and information processing. However, the real-space imaging of confined excitonic species within a moiré unit cell remains challenging; existing claims are mainly inferred from spatially averaged far-field signals that are intrinsically insufficient to resolve nanometre-scale variations. Here we resolve the site-selective confinement of moiré excitons in a 2° twisted bilayer MoS2 with nanometre resolution using room-temperature photocurrent atomic force microscopy. We show that direct and indirect excitons localize at different stacking registries of the moiré, with contrast governed by alignment between site-selective generation and confinement minima. A Wannier-based effective moiré-exciton model captures the measured energies and the moiré-induced localization of the exciton wavefunction. These species-specific, unit-cell-resolved measurements constrain the microscopic models of moiré excitons, provide benchmarks for excitonic order and establish a device-compatible route to engineering excitonic lattices in van der Waals heterostructures. Moiré excitons have been widely observed in twisted two-dimensional semiconductors but have not been directly imaged at room temperature. Now, this is achieved using photocurrent atomic force microscopy.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"22 10","pages":"1594-1599"},"PeriodicalIF":18.0,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antidots measure anyonic charge in graphene 反点测量石墨烯中的任意电子电荷

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-21 DOI: 10.1038/s41567-026-03428-8

引用次数: 0

Electrons surf farther on plasma waves 电子在等离子体波上遨游得更远

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-21 DOI: 10.1038/s41567-026-03410-4

Hai-En Tsai

引用次数: 0

Irreversibility and symmetry breaking in the creation and annihilation of defects in active living matter 活性生命物质中缺陷的产生和消灭的不可逆性和对称性破坏

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-18 DOI: 10.1038/s41567-026-03378-1

A. Be’er, E. D. Neimand, Y. Agarwal, D. Corbett, D. J. G. Pearce, G. Ariel, V. Yashunsky

{"title":"Irreversibility and symmetry breaking in the creation and annihilation of defects in active living matter","authors":"A. Be’er, E. D. Neimand, Y. Agarwal, D. Corbett, D. J. G. Pearce, G. Ariel, V. Yashunsky","doi":"10.1038/s41567-026-03378-1","DOIUrl":"10.1038/s41567-026-03378-1","url":null,"abstract":"Active living matter continuously creates and annihilates topological defects with underlying dynamics that are not fully understood. Here we show that the process of defect creation and annihilation involves spontaneous spatial mirror-symmetry breaking. We investigate these dynamics in two active living systems—swarming bacteria and human bronchial epithelial cells. Despite their distinct evolutionary origins, biological functions and physical scales, both systems exhibit half-integer defects, consistent with the nematic phase. However, in contrast to active nematic theory, we find that the creation and annihilation of defect pairs break mirror symmetry with respect to the line connecting the defects. We propose that this phenomenon stems from a dualism between nematic structural organization and generated polar forces, which are intrinsic to living systems. Furthermore, the estimation of entropy production reveals that creation and annihilation are not reverse processes. Our findings emphasize the role of defect-mediated dynamics in non-equilibrium biological systems as a major source of entropy production and may challenge conventional nematic models. Creation and annihilation of topological defects are prevalent in active materials. It is now shown that in living systems with nematic order, polar propulsion breaks mirror symmetry during these processes.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"22 10","pages":"1663-1671"},"PeriodicalIF":18.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148769258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Hall antidot as a fractional coulombmeter 作为分数库仑计的量子霍尔反点

IF 18 1区物理与天体物理

Nature Physics Pub Date : 2026-08-14 DOI: 10.1038/s41567-026-03412-2

Mario Di Luca, Emily Hajigeorgiou, Zekang Zhou, Tevž Lotrič, Tengyan Feng, Kenji Watanabe, Takashi Taniguchi, Steven H. Simon, Mitali Banerjee

{"title":"Quantum Hall antidot as a fractional coulombmeter","authors":"Mario Di Luca, Emily Hajigeorgiou, Zekang Zhou, Tevž Lotrič, Tengyan Feng, Kenji Watanabe, Takashi Taniguchi, Steven H. Simon, Mitali Banerjee","doi":"10.1038/s41567-026-03412-2","DOIUrl":"10.1038/s41567-026-03412-2","url":null,"abstract":"The ability to detect the fractionally charged quasiparticles that arise in the fractional quantum Hall regime is of fundamental importance for probing their quantum properties. Although electronic interferometers have successfully probed their statistical properties, interpreting the results is often complicated by bulk–edge interactions. Antidots—tunable hills in the potential landscape in the device—are particularly valuable in this context, as they overcome the geometric limitations of conventional interferometer designs and act as controlled impurities. Here we demonstrate a method for extracting the charge of quasiparticles as they tunnel through an antidot. To accomplish this, we employ a gate-defined bilayer-graphene antidot operating in the Coulomb-dominated regime to study quasiparticle tunnelling in both integer and fractional quantum Hall states and we report direct measurements of fractional charge. Our derived theoretical model indicates that the differences in the measured charges may be attributed to variations in edge re-equilibration arising from a different parity of downstream integer edge modes. The simplicity and tunability of this design open a pathway to extending antidot-based charge measurements to other van der Waals materials and establishing antidots as a broadly applicable platform for studying topological materials. A transport technique that allows the measurement of the effective charge of fractional quantum Hall states as they tunnel through a controlled impurity is demonstrated.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"22 10","pages":"1587-1593"},"PeriodicalIF":18.0,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41567-026-03412-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148728842","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

Diamond melting in shock compression experiments at 1 TPa pressures 在1tpa压力下的冲击压缩实验中金刚石熔化

IF 19.6 1区物理与天体物理

Nature Physics Pub Date : 2026-08-13 DOI: 10.1038/s41567-026-03413-1

Marius Millot, Federica Coppari, Amy Lazicki, Yong-Jae Kim, Otto L. Landen, Vladimir A. Smalyuk, Peter M. Celliers, Jon H. Eggert

{"title":"Diamond melting in shock compression experiments at 1 TPa pressures","authors":"Marius Millot, Federica Coppari, Amy Lazicki, Yong-Jae Kim, Otto L. Landen, Vladimir A. Smalyuk, Peter M. Celliers, Jon H. Eggert","doi":"10.1038/s41567-026-03413-1","DOIUrl":"https://doi.org/10.1038/s41567-026-03413-1","url":null,"abstract":"Carbon’s abundance, strong covalent bonding and relevance to inertial confinement fusion and planetary science have motivated extensive investigation of its phase diagram at terapascal pressures. However, the melting curve and the existence of phases beyond diamond remain uncertain. Here we resolve the discrepancy between experiments and theoretical simulations of the melting temperature of diamond and show that the diamond structure persists up to 1 TPa. This contradicts a previous report of a transition to the BC8 phase, which density functional theory predicts to be the thermodynamically stable phase of carbon above pressures around 1 TPa. We combine optical velocimetry, pyrometry and X-ray diffraction to probe microcrystalline diamond under nanosecond shock compression. Shock temperature and reflectivity measurements reveal changes in thermodynamic and optical properties, along with a decrease in X-ray diffraction intensity. These results provide evidence for shock-induced melting with a slight decrease in melting temperature with increasing pressure near 7,300 K. Our work delivers atomic-scale benchmarks for quantum simulations of condensed matter at extreme conditions, with implications for planetary interiors. Our improved understanding of diamond melting might also be relevant for achieving higher energy gain in laser-driven nuclear fusion.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"42 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2026-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148728843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0