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  • In the 1980s, the discovery of electron states that fractionalize in the presence of a time-reversal symmetry breaking magnetic field opened up new directions in condensed matter physics. In 2023, evidence has accumulated that a version of these states in which the time-reversal symmetry breaking is spontaneous appears in moiré materials.

    • Nicolás Morales-Durán
    • Jingtian Shi
    • A. H. MacDonald
    Year in Review
  • Quantum sensing exploits properties of quantum systems to go beyond what is possible with traditional measurement techniques, hence opening exciting opportunities in both low-energy and high-energy particle physics experiments.

    • Steven D. Bass
    • Michael Doser
    Perspective
  • This Review covers the intriguing physics behind orbital angular momentum lasers, summarizing the exciting prospects at the interface between structured light and structured matter.

    • Andrew Forbes
    • Light Mkhumbuza
    • Liang Feng
    Review Article
  • Non-fullerene acceptors have boosted the development of organic photovoltaics. This Review highlights the photophysics and device physics of non-fullerene organic photovoltaics, including exciton generation, diffusion, transport, separation and charge recombination.

    • Jiayu Wang
    • Yuan Xie
    • Xiaowei Zhan
    Review Article
  • Machine learning techniques may appear ill-suited for application in fields that prioritize rigor and deep understanding; however, they have recently found unexpected uses in theoretical physics and pure mathematics. In this Perspective, Gukov, Halverson and Ruehle have discussed rigorous applications of machine learning to theoretical physics and pure mathematics.

    • Sergei Gukov
    • James Halverson
    • Fabian Ruehle
    Perspective
  • Neural operators learn mappings between functions on continuous domains, such as spatiotemporal processes and partial differential equations, offering a fast, data-driven surrogate model solution for otherwise intractable numerical simulations of complex real-world problems.

    • Kamyar Azizzadenesheli
    • Nikola Kovachki
    • Anima Anandkumar
    Perspective
  • Many everyday English words have a double meaning, being used as physics jargon. This month, we share some of our favourite stories of how physics terms came to be.

    Editorial
  • Developing photodetectors that work across the electromagnetic spectrum remains a challenge, and there are many trade-offs to be considered, including speed, efficiency, noise, spectral detection range and cost. This Review discusses the photophysical attributes of the active materials that define the interrelated aspects of response amplitude and temporal dynamics in photodetectors.

    • Amin Morteza Najarian
    • Maral Vafaie
    • Edward H. Sargent
    Review Article
  • Similar to acoustic and electromagnetic waves, water waves are classical waves that can be controlled by artificial structures such as water wave crystals and metamaterials. This Review surveys the development of water wave manipulation using artificial structures and describes its potential applications.

    • Shan Zhu
    • Xinyu Zhao
    • Huanyang Chen
    Review Article
  • Science and society are inextricably entangled, but the discussion of social issues in optics and photonics is, at best, treated as peripheral to the field. A group of researchers, technicians, administrative staff, and clinical liaisons share how they came together to start a conversation recognizing these oft-disregarded issues.

    • Kimberli Bell
    • Taylor M. Cannon
    • Linhui Yu
    Comment
  • In 2023, pulsar timing arrays announced what could become the first ever discovery of a stochastic gravitational wave background: the random superposition of gravitational waves permeating the cosmos — a vestige of cosmic processes in the Universe.

    • Chiara Caprini
    Year in Review
  • Structure and function of biological tissues are closely intertwined. This Review surveys the challenges in uncovering critical physical elements involved in the mechanical regulation of curved tissues across different length scales and examines how changes in curvature influence cell functions.

    • Marine Luciano
    • Caterina Tomba
    • Sylvain Gabriele
    Review Article
  • Good writing is about having something interesting and original to say. Generative AI tools might provide technical help, but they are no substitute for your unique perspective.

    Editorial
  • Pietro Barabaschi, Director General of ITER, calls for measures and incentives to carefully document the entire research process, including dead ends and failures, instead of reporting just the successful final results.

    • Pietro Barabaschi
    World View
  • Mónica Bello, Curator and Head of Arts at CERN talks about the programmes that have been fostering the dialogue between artists and physicists for over a decade with the aim of exploring the cultural significance of fundamental research.

    • Iulia Georgescu
    • Mónica Bello
    Q&A