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  • Physics societies have a long and illustrious history. Now, a world-wide union of societies celebrates its 100th birthday with a centennial conference.

  • The formation of bubbles at liquid–liquid interfaces is challenging to explain because gas pockets cannot be stabilized by cracks on solid impurities. Experiments show that a difference in the gas solubilities of two immiscible liquids provides a gas reservoir, which allows gas to accumulate at the interface, leading to bubble formation.

    Research Briefing
  • Bayesian history matching is a statistical tool used to calibrate complex numerical models. Now, it has been applied to first-principles simulations of several nuclei, including 208Pb, whose properties are linked to the interior of neutron stars.

    • Arnau Rios
    News & Views
  • A new study that reveals under-citation of women physicists invites individual and journal-level action to tackle discrimination.

  • The vast majority of devices for processing quantum information — from communication to computation and sensing — operate with quantum bits. Federico Levi tells us what makes a good qubit.

    • Federico Levi
    Measure for Measure
  • Cavitation refers to the emergence of bubbles from liquids undergoing pressure reduction. A hitherto unknown cavitation scenario is now reported, with bubbles originating from the atomically smooth interface between two immiscible liquids.

    • Patricia Pfeiffer
    • Meysam Shahrooz
    • Claus-Dieter Ohl
  • A quantum many-body system’s equilibrium behaviour is described by its partition function, which is hard to compute. Now it has been shown that the easier task of finding an approximation could define a distinct class of computational problems.

    • Sergey Bravyi
    • Anirban Chowdhury
    • Pawel Wocjan
  • Fluid simulations today are remarkably realistic. In this Comment I discuss some of the most striking results from the past 20 years of computer graphics research that made this happen.

    • Károly Zsolnai-Fehér
  • Fractional charges are one of the hallmarks of topological matter and the building blocks of various topological devices. Now, there are indications that their fingerprint in terms of electrical noise is less obvious, but more universal, than expected.

    • Stefano Roddaro
    News & Views
  • Evidence for an exotic form of the Kondo effect has been obtained by placing magnetic atoms on single-layer 1T-TaSe2, which is a quantum spin liquid candidate. Unlike conventional Kondo screening, which arises from conduction electrons in a metal, the Kondo effect in 1T-TaSe2 arises from charge-neutral particles known as spinons.

    Research Briefing
  • Cervix and breast carcinomas are highly heterogeneous in their mechanical properties across scales. This heterogeneity provides the tumour with stability and room for cell motility.

    • Thomas Fuhs
    • Franziska Wetzel
    • Josef A. Käs