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  • Over the past decade machine learning has made significant advances in approximating density functionals, but whether this signals the end of human-designed functionals remains to be seen.

    • Ryan Pederson
    • Bhupalee Kalita
    • Kieron Burke
    Comment
  • Topological defects play an important role in biology, as shown by a growing body of evidence. Aleksandra Ardaševa and Amin Doostmohammadi survey the new research directions that are opening.

    • Aleksandra Ardaševa
    • Amin Doostmohammadi
    Comment
  • The neutron and the positron were both discovered in 1932. This month we look back at these discoveries and find that we have more in common with early 20th century physicists that one might suspect.

    Editorial
  • Machine learning methods have proved powerful in particle physics, but without interpretability there is no guarantee the outcome of a learning algorithm is correct or robust. Christophe Grojean, Ayan Paul, Zhuoni Qian and Inga Strümke give an overview of how to introduce interpretability to methods commonly used in particle physics.

    • Christophe Grojean
    • Ayan Paul
    • Inga Strümke
    Comment
  • 45 years after being coined, the quantum Zeno effect still holds surprises.

    • Iulia Georgescu
    Research Highlight
  • The first confirmed discovery of a planet outside our Solar System was announced 30 years ago. Since then, technical developments have enabled detection of thousands of exoplanets.

    • Zoe Budrikis
    Research Highlight
  • Breakfast is serious business — and involves a lot of physics. This month, we share with you our favourite breakfast-related physics papers.

    Editorial
  • Gregory White discusses process tensor tomography, a method to characterize non-Markovian dynamics, which can find applications in quantum technologies and the study of open quantum systems.

    • Gregory White
    Tools of the Trade
  • Hillel Sanhedrai explains how it can be possible to revive a failed network functionality by controlling the activity of just a single node.

    • Hillel Sanhedrai
    Tools of the Trade
  • A paper in Physical Review X reports on the role of spatial coherence in branched flow patterns in light.

    • Zoe Budrikis
    Research Highlight
  • Wigner crystals — ordered arrays of electrons — have been recently found in various 2D materials, but the first studies of these crystals in 2D electron systems (2DESs) date back from the 1980s. Mansour Shayegan gives a brief history of Wigner crystals and highlights future prospects.

    • Mansour Shayegan
    Comment
  • A paper in Science Advances uses a laboratory setup to simulate galaxy cluster cores and explain the suppression of heat conduction from the plasma core.

    • Ankita Anirban
    Research Highlight
  • Two recent studies report more stringent constraints on dark matter from experiments with atoms and ions that make use of techniques and devices developed for quantum technologies.

    • Iulia Georgescu
    Research Highlight