Nature PhysicsPub Date : 2025-07-18DOI: 10.1038/s41567-025-02985-8
Didier Poilblanc
{"title":"A model spin liquid","authors":"Didier Poilblanc","doi":"10.1038/s41567-025-02985-8","DOIUrl":"https://doi.org/10.1038/s41567-025-02985-8","url":null,"abstract":"It is thought that a resonating valence bond state can form in certain correlated systems. However, this behaviour is predicted by only a few realistic models. Now it has been shown that this phase emerges in an experimentally relevant model.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"13 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144652516","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}
Nature PhysicsPub Date : 2025-07-18DOI: 10.1038/s41567-025-02964-z
Ping Liu, Qiuyu Wang, Xin Dai, Lingxuan Pei, Junfan Wang, Weiyi Zhao, Heath E. Johnson, Mingxi Yao, Artem K. Efremov
{"title":"Elastic properties of force-transmitting linkages determine multistable mechanosensitive behaviour of cell adhesion","authors":"Ping Liu, Qiuyu Wang, Xin Dai, Lingxuan Pei, Junfan Wang, Weiyi Zhao, Heath E. Johnson, Mingxi Yao, Artem K. Efremov","doi":"10.1038/s41567-025-02964-z","DOIUrl":"https://doi.org/10.1038/s41567-025-02964-z","url":null,"abstract":"<p>Cells can sense and respond to their environment. Central to this process is the formation of molecular clutches, which are dynamic linkages between the extracellular matrix and the actin cytoskeleton mediated by integrins and adaptor proteins. Although it is well known that force-dependent interactions between molecular-clutch components are essential for sensing substrate rigidity, the influence of nonlinear adaptor-protein elasticity is poorly understood. Here we show that adaptor-protein elasticity and local interactions between molecular clutches and the extracellular matrix are key to cellular perception of substrate stiffness. We present a semi-analytical theory that integrates experimentally measured force responses of adaptor proteins to describe cell-adhesion sensing. We propose that molecular clutches probe local mechanical substrate properties and collectively function as a differential that allows a retrograde actin flow and substrate movement to occur at different rates while maintaining a stable mechanical coupling between them. Our model reproduces experimentally measured force-loading rates of individual molecular clutches and correctly predicts cell-adhesion behaviour for a range of substrate stiffnesses. The framework presented can be extended to study complex phenomena such as focal-adhesion maturation and cell-type-specific mechanosensing.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"153 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144652565","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}
Nature PhysicsPub Date : 2025-07-14DOI: 10.1038/s41567-025-02945-2
Qi Zhao, You Zhou, Andrew M. Childs
{"title":"Entanglement accelerates quantum simulation","authors":"Qi Zhao, You Zhou, Andrew M. Childs","doi":"10.1038/s41567-025-02945-2","DOIUrl":"https://doi.org/10.1038/s41567-025-02945-2","url":null,"abstract":"<p>Quantum entanglement is an essential feature of many-body systems that impacts both quantum information processing and fundamental physics. Classical simulation methods can efficiently simulate many-body states with low entanglement, but struggle as the degree of entanglement grows. Here we investigate the relationship between quantum entanglement and quantum simulation, and show that product formula approximations for simulating many-body systems can perform better for entangled systems. We establish an upper bound for algorithmic error in terms of entanglement entropy that is tighter than previous results, and develop an adaptive simulation algorithm that incorporates measurement gadgets to estimate the algorithmic error. This shows that entanglement is not only an obstacle to classical simulation, but also a feature that can accelerate quantum algorithms.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"748 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622469","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}
Nature PhysicsPub Date : 2025-07-14DOI: 10.1038/s41567-025-02955-0
Juris Meija
{"title":"Elusive isotope ratios","authors":"Juris Meija","doi":"10.1038/s41567-025-02955-0","DOIUrl":"https://doi.org/10.1038/s41567-025-02955-0","url":null,"abstract":"Unresolved discrepancies between isotope ratio measurements are not uncommon and have even slowed down the revision of the International System of Units, explains Juris Meija.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"52 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629529","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}
Nature PhysicsPub Date : 2025-07-14DOI: 10.1038/s41567-025-02981-y
{"title":"Take a tour of telescopes or tokamaks","authors":"","doi":"10.1038/s41567-025-02981-y","DOIUrl":"https://doi.org/10.1038/s41567-025-02981-y","url":null,"abstract":"It’s never too early to plan for a regular dose of physics during your vacation. If you are looking for inspiration, we have some hidden physics gems for you.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"14 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629530","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}
Nature PhysicsPub Date : 2025-07-14DOI: 10.1038/s41567-025-02978-7
Lishu Wu
{"title":"Ultrafast Pockels laser","authors":"Lishu Wu","doi":"10.1038/s41567-025-02978-7","DOIUrl":"https://doi.org/10.1038/s41567-025-02978-7","url":null,"abstract":"<p>Microresonators with a high quality factor have enabled the development of frequency-agile, low-noise lasers, desired for applications such as sensing, communication and quantum information processing. However, their performance limits their practical use. Now, Anat Siddharth and colleagues have developed a compact Pockels laser with enhanced output power and frequency tuning range, rate as well as efficiency for practical applications (<i>Nat. Photon</i>. https://doi.org/10.1038/s41566-025-01687-0; 2025).</p><p>The team validated the laser’s practical performance through two key demonstrations. First, they employed the laser in frequency-modulated continuous-wave LiDAR (light detection and ranging) — a remote sensing method that uses light to detect objects by measuring the time for the reflected light to return to the receiver — to achieve below 5 cm distance resolution. Second, they used the laser to measure the absorption line of hydrogen cyanide to test its application in high-resolution atmospheric gas sensing. Siddharth and colleagues found that the measured linewidth of the absorption peak was consistent with the simulated one.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"13 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629527","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}
Nature PhysicsPub Date : 2025-07-14DOI: 10.1038/s41567-025-02979-6
Bart Verberck
{"title":"Spatial sound decomposer","authors":"Bart Verberck","doi":"10.1038/s41567-025-02979-6","DOIUrl":"https://doi.org/10.1038/s41567-025-02979-6","url":null,"abstract":"<p>The team conceived the emitter as bits of acoustically reflecting material within a certain area, with voids between them filled with air. A monopolar sound source located at the centre of the structure emitted frequencies between 7,600 Hz and 12,800 Hz (which is within treble audio frequency range) with equal power throughout. Because of reciprocity, the emission and reception properties of such a device are reversible — hence the design as an emitter, which is more feasible to realize experimentally than a receiver.</p><p>Christiansen and colleagues solved the design task for such an emitter numerically as an iterative process in which they compared the desired target emission pattern to the acoustic pattern produced by the proposed structure. By minimizing a well-defined figure of merit, the team obtained the optimal geometry. Continuous pressure fields were assumed, as well as negligible mechanical vibrations in the device. The result of this formidable computational exercise was a square mask with 28 subwavelength features, which they then fabricated as a 10 cm by 10 cm structure on a substrate (pictured). The researchers demonstrated that this device had the desired spatio-spectral response and a high efficiency over the complete frequency range of the source.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"37 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629528","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}
Nature PhysicsPub Date : 2025-07-14DOI: 10.1038/s41567-025-02967-w
Mark Buchanan
{"title":"Too late to be careless","authors":"Mark Buchanan","doi":"10.1038/s41567-025-02967-w","DOIUrl":"https://doi.org/10.1038/s41567-025-02967-w","url":null,"abstract":"<p>There are dozens of proposed answers. Maybe life really is just extremely rare. Or perhaps life is common, but developing powerful technology able to spread through an entire galaxy is not. Maybe intelligent civilizations do exist, and being millions of years more advanced than us, they have already visited — and know how to hide. Perhaps they are already living among us (explaining why spiders seem so creepy). Or perhaps other civilizations know from vast experience that the galaxy is brimming with deadly predators, and so they keep a very low profile. And then the gloomiest solution: could it be that all intelligent civilizations eventually develop a technology that destroys them?</p><blockquote><p>“Could it be that all intelligent civilizations eventually develop a technology that destroys them?”</p></blockquote>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"1 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629533","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}
Nature PhysicsPub Date : 2025-07-11DOI: 10.1038/s41567-025-02952-3
H. Zhang, N. Peshcherenko, Fazhi Yang, T. Z. Ward, P. Raghuvanshi, L. Lindsay, Claudia Felser, Yang Zhang, J.-Q. Yan, H. Miao
{"title":"Measurement of phonon angular momentum","authors":"H. Zhang, N. Peshcherenko, Fazhi Yang, T. Z. Ward, P. Raghuvanshi, L. Lindsay, Claudia Felser, Yang Zhang, J.-Q. Yan, H. Miao","doi":"10.1038/s41567-025-02952-3","DOIUrl":"https://doi.org/10.1038/s41567-025-02952-3","url":null,"abstract":"<p>In condensed matter, angular momentum is intimately related to the emergence of topological quantum states, including chiral superconductivity, quantum spin liquids and various chiral quasiparticles. Recently, it has been predicted that microscopic lattice excitations, known as phonons, can carry finite angular momentum, leading to specific physical properties of materials. However, phonon angular momentum has not yet been observed directly. Here we demonstrate that angular momentum conservation results in a macroscopic mechanical torque when applying a time-reversal symmetry-breaking thermal gradient along the chiral axis of single-crystal tellurium. We probe this torque using a cantilever-based device and establish that it changes sign by flipping the chirality or thermal gradient. This behavior disappears in polycrystalline samples that lack a preferred chirality. Our experimental results align well with theoretical calculations. We provide compelling evidence for phonon angular momentum, which might enable quantum states with potential applications in microelectronics.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"35 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144603305","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}
Nature PhysicsPub Date : 2025-07-11DOI: 10.1038/s41567-025-02917-6
Md Shafayat Hossain, Zi-Jia Cheng, Yu-Xiao Jiang, Tyler A. Cochran, Song-Bo Zhang, Huangyu Wu, Xiaoxiong Liu, Xiquan Zheng, Guangming Cheng, Byunghoon Kim, Qi Zhang, Maksim Litskevich, Junyi Zhang, Jinjin Liu, Jia-Xin Yin, Xian P. Yang, Jonathan D. Denlinger, Massimo Tallarida, Ji Dai, Elio Vescovo, Anil Rajapitamahuni, Nan Yao, Anna Keselman, Yingying Peng, Yugui Yao, Zhiwei Wang, Luis Balicas, Titus Neupert, M. Zahid Hasan
{"title":"Topological excitonic insulator with tunable momentum order","authors":"Md Shafayat Hossain, Zi-Jia Cheng, Yu-Xiao Jiang, Tyler A. Cochran, Song-Bo Zhang, Huangyu Wu, Xiaoxiong Liu, Xiquan Zheng, Guangming Cheng, Byunghoon Kim, Qi Zhang, Maksim Litskevich, Junyi Zhang, Jinjin Liu, Jia-Xin Yin, Xian P. Yang, Jonathan D. Denlinger, Massimo Tallarida, Ji Dai, Elio Vescovo, Anil Rajapitamahuni, Nan Yao, Anna Keselman, Yingying Peng, Yugui Yao, Zhiwei Wang, Luis Balicas, Titus Neupert, M. Zahid Hasan","doi":"10.1038/s41567-025-02917-6","DOIUrl":"https://doi.org/10.1038/s41567-025-02917-6","url":null,"abstract":"<p>Correlated topological materials often maintain a delicate balance among physical symmetries. Many topological orders are symmetry protected, whereas most correlated phenomena arise from spontaneous symmetry breaking. Cases where symmetry breaking induces a non-trivial topological phase are rare. Here we demonstrate the presence of two such phases in Ta<sub>2</sub>Pd<sub>3</sub>Te<sub>5</sub>, where Coulomb interactions form excitons that condense below 100 K, one with zero and the other with finite momentum. We observed a full spectral bulk gap, which stems from exciton condensation. This topological excitonic insulator state spontaneously breaks mirror symmetries but involves a weak structural coupling. Scanning tunnelling microscopy shows gapless boundary modes in the bulk insulating phase. Their magnetic field response, together with theoretical modelling, indicates a topological origin. These observations establish Ta<sub>2</sub>Pd<sub>3</sub>Te<sub>5</sub> as a topological excitonic insulator in a three-dimensional crystal. Thus, our results manifest a unique sequence of topological exciton condensations in a bulk crystal, offering exciting opportunities to study critical behaviour and excitations.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"11 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144603009","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}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
