{"title":"Complexity from minimal state spreading","authors":"Rathindra Nath Das","doi":"10.1038/s42254-026-00967-0","DOIUrl":"10.1038/s42254-026-00967-0","url":null,"abstract":"Rathindra Nath Das recounts how a simple framework to assess complexity published in 2022 shaped his own approach to physics.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 8","pages":"476-476"},"PeriodicalIF":46.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667604","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}
Shafin Bin Hamid, Jean Anne C. Incorvia, Samuel Liu
{"title":"Non-idealities in artificial synapses","authors":"Shafin Bin Hamid, Jean Anne C. Incorvia, Samuel Liu","doi":"10.1038/s42254-026-00957-2","DOIUrl":"10.1038/s42254-026-00957-2","url":null,"abstract":"The increasing energy and latency demands of artificial intelligence workloads in data-intensive applications are limited by the traditional von Neumann computer architecture, in which the memory and processing units are physically separated. Non-volatile memory technologies offer opportunities for analog in-memory computing that can go beyond these limits. These architectures consist of artificial synapses in dense crossbar arrays in which processing and memory can be combined. However, artificial synapses have various non-ideal effects, including nonlinearity, asymmetry, variability, limited endurance and retention loss which affect their capacity to be integrated into reliable accelerator platforms. In this Review, we consider the ideal synapse model and classify the effects that deviate from this ideality. In addition to discussing techniques to counter non-idealities that span material, device, circuit-level and algorithm-level design, we also consider cases that leverage deviations from the ideal towards specific applications. We make the case that the most effective synapse is one whose imperfections are well understood and can be harnessed in synergy with system-level goals. Artificial synapses based on non-volatile memory exhibit non-ideal effects that can limit the performance of neuromorphic systems. This Review discusses their origins, mitigation strategies and opportunities to exploit these non-idealities for new computing functionalities.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 9","pages":"541-560"},"PeriodicalIF":46.6,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872224","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}
{"title":"The unreasonable usefulness of black holes","authors":"","doi":"10.1038/s42254-026-00966-1","DOIUrl":"10.1038/s42254-026-00966-1","url":null,"abstract":"Ubiquitous in popular culture, black holes were once highly debated and remain an intellectually active research area with applications in volcano monitoring and bone growth.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 7","pages":"397-397"},"PeriodicalIF":46.6,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s42254-026-00966-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389287","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}
{"title":"Ultrahigh spatiotemporal resolution terahertz scanning tunnelling microscopy","authors":"Jiayu Xu, Yunpeng Xia, Qiuyan Lin, Shijing Tan, Bing Wang, Jia-Xin Yin","doi":"10.1038/s42254-026-00952-7","DOIUrl":"10.1038/s42254-026-00952-7","url":null,"abstract":"Understanding and controlling matter at atomic scales is critical for materials science and condensed matter physics, as many macroscopic properties stem from phenomena and mechanisms at sub-nanometre dimensions. Although optical spectroscopy remains a cornerstone of materials characterization, scanning tunnelling microscopy (STM) has become an essential tool because of its atomic-level spatial resolution. Terahertz (THz) STM brings together these two approaches by introducing picosecond THz pulses into the STM junction. This enables the exploration and manipulation of electron dynamics, molecular motions and many-body states with both atomic spatial and sub-picosecond temporal resolution. Here, we review the principles, methodologies and applications of THz-STM, highlighting its unique ability to simultaneously access temporal, spatial and energy domains to provide insight into ultrafast nanoscale phenomena and driving advances in next-generation technologies. We project future opportunities for THz-STM in quantum materials, including measuring non-equilibrium quantum topology that may feature Floquet and non-Hermitian physics as well as exploring optical control of superconductivity and light-induced Cooper pairing. Terahertz scanning tunnelling microscopy integrates picosecond pulses with atomic resolution, enabling detailed analysis of electron dynamics and molecular motions. This Technical Review outlines methods and applications, emphasizing insights into ultrafast phenomena and potential advances in quantum materials and technologies.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 8","pages":"508-520"},"PeriodicalIF":46.6,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667586","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}
{"title":"Ultrahigh spatiotemporal resolution terahertz scanning tunnelling microscopy","authors":"Jiayu Xu, Yunpeng Xia, Qiuyan Lin, Shijing Tan, Bing Wang, Jia-Xin Yin","doi":"10.1038/s42254-026-00952-7","DOIUrl":"10.1038/s42254-026-00952-7","url":null,"abstract":"Understanding and controlling matter at atomic scales is critical for materials science and condensed matter physics, as many macroscopic properties stem from phenomena and mechanisms at sub-nanometre dimensions. Although optical spectroscopy remains a cornerstone of materials characterization, scanning tunnelling microscopy (STM) has become an essential tool because of its atomic-level spatial resolution. Terahertz (THz) STM brings together these two approaches by introducing picosecond THz pulses into the STM junction. This enables the exploration and manipulation of electron dynamics, molecular motions and many-body states with both atomic spatial and sub-picosecond temporal resolution. Here, we review the principles, methodologies and applications of THz-STM, highlighting its unique ability to simultaneously access temporal, spatial and energy domains to provide insight into ultrafast nanoscale phenomena and driving advances in next-generation technologies. We project future opportunities for THz-STM in quantum materials, including measuring non-equilibrium quantum topology that may feature Floquet and non-Hermitian physics as well as exploring optical control of superconductivity and light-induced Cooper pairing. Terahertz scanning tunnelling microscopy integrates picosecond pulses with atomic resolution, enabling detailed analysis of electron dynamics and molecular motions. This Technical Review outlines methods and applications, emphasizing insights into ultrafast phenomena and potential advances in quantum materials and technologies.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 8","pages":"508-520"},"PeriodicalIF":46.6,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667587","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}
{"title":"Discovery is not the opposite of application","authors":"Hiranya V. Peiris","doi":"10.1038/s42254-026-00964-3","DOIUrl":"10.1038/s42254-026-00964-3","url":null,"abstract":"Restructuring research funding as a choice between discovery and application gets the economics wrong, the evidence wrong and the people wrong.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 7","pages":"400-401"},"PeriodicalIF":46.6,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389314","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}
{"title":"Data-driven discovery of dynamical models in biology","authors":"Bartosz Prokop, Lendert Gelens","doi":"10.1038/s42254-026-00955-4","DOIUrl":"10.1038/s42254-026-00955-4","url":null,"abstract":"Dynamical systems theory provides a mathematical framework for describing how interacting biological components evolve over time and space, from molecular oscillators to large-scale biological patterns. Such systems often involve nonlinear feedbacks, delays and multiscale interactions, making mechanistic model construction increasingly challenging as experimental measurements become richer and higher dimensional. This has motivated the development of data-driven approaches that infer model structure directly from data, offering alternative routes to constructing dynamical models. In this Technical Review, we discuss and compare data-driven approaches for model discovery in biological dynamical systems, focusing on three major methodological families: regression-based methods, network-based architectures and decomposition techniques. This Technical Review compares data-driven approaches for discovering dynamical models in biology, focusing on regression-based methods, network-based architectures and decomposition techniques. It describes how these approaches extract dynamical information from time-resolved data and evaluates their strengths, limitations and complementarity.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 9","pages":"561-578"},"PeriodicalIF":46.6,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872220","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}
A. Jadbabaie, S. Ebadi, R. F. Garcia Ruiz, N. R. Hutzler, A. M. Jayich, J. T. Singh
{"title":"Radioactive molecules as laboratories of fundamental physics","authors":"A. Jadbabaie, S. Ebadi, R. F. Garcia Ruiz, N. R. Hutzler, A. M. Jayich, J. T. Singh","doi":"10.1038/s42254-026-00950-9","DOIUrl":"10.1038/s42254-026-00950-9","url":null,"abstract":"Radioactive molecules provide a new platform in the search for new physics, at energy scales complementary to those probed by high-energy particle colliders. By combining enhancements from nuclear properties with the sensitivity and control offered by molecular structure, experiments with radioactive molecules offer great reach in the search for physics beyond the standard model. Progress in this field is being driven by advances in the production and control of radioactive molecules, alongside the development of new experimental tools and theoretical techniques. In this Perspective, we discuss the current status and future prospects of this rapidly developing, interdisciplinary field at the intersection of nuclear physics, atomic and molecular physics and particle physics. Radioactive molecules containing octupole-deformed nuclei offer a promising platform for measuring fundamental symmetry violations and searching for new physics. This Perspective discusses how advances in their production, trapping and molecular quantum control are enabling precision tests of fundamental physics at energy scales complementary to those probed by high-energy colliders.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 8","pages":"521-530"},"PeriodicalIF":46.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667591","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}
A. Jadbabaie, S. Ebadi, R. F. Garcia Ruiz, N. R. Hutzler, A. M. Jayich, J. T. Singh
{"title":"Radioactive molecules as laboratories of fundamental physics","authors":"A. Jadbabaie, S. Ebadi, R. F. Garcia Ruiz, N. R. Hutzler, A. M. Jayich, J. T. Singh","doi":"10.1038/s42254-026-00950-9","DOIUrl":"10.1038/s42254-026-00950-9","url":null,"abstract":"Radioactive molecules provide a new platform in the search for new physics, at energy scales complementary to those probed by high-energy particle colliders. By combining enhancements from nuclear properties with the sensitivity and control offered by molecular structure, experiments with radioactive molecules offer great reach in the search for physics beyond the standard model. Progress in this field is being driven by advances in the production and control of radioactive molecules, alongside the development of new experimental tools and theoretical techniques. In this Perspective, we discuss the current status and future prospects of this rapidly developing, interdisciplinary field at the intersection of nuclear physics, atomic and molecular physics and particle physics. Radioactive molecules containing octupole-deformed nuclei offer a promising platform for measuring fundamental symmetry violations and searching for new physics. This Perspective discusses how advances in their production, trapping and molecular quantum control are enabling precision tests of fundamental physics at energy scales complementary to those probed by high-energy colliders.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 8","pages":"521-530"},"PeriodicalIF":46.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667583","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}
{"title":"Electrospray ion beam deposition for scanning tunnelling microscopy of complex molecules","authors":"Dhaneesh Kumar","doi":"10.1038/s42254-026-00965-2","DOIUrl":"10.1038/s42254-026-00965-2","url":null,"abstract":"Dhaneesh Kumar describes a method to enable the surface imaging of complex molecules.","PeriodicalId":19024,"journal":{"name":"Nature Reviews Physics","volume":"8 7","pages":"404-404"},"PeriodicalIF":46.6,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389310","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}