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  • Circular Rydberg states provide an ideal resource for large-scale quantum computing and simulation. These circular states can be controlled using coherent optical pulses, providing a route to programmable quantum hardware.

    • Jonathan Pritchard
    News & Views
  • Controlling chemistry at the single-collision level is one of the main goals of experiments at ultralow temperatures. A method based on quantum logic techniques has now been shown to detect inelastic collisions in a hybrid ion–atom platform.

    • Michał Tomza
    News & Views
  • The origin of a well-known feature in relaxation data seen in many glass-forming materials has now — possibly — been resolved by means of computer simulations.

    • Reiner Zorn
    News & Views
  • The transition from chemistry to evolvable molecular systems is at the core of origins of life studies. Now, the acidic dew–liquid water dynamic cycling inside simulated Hadean rock pores is found to possibly provide a confined environment for strand separation, replication, mutation, and the evolution of nucleic acids.

    • Sudha Rajamani
    • Elisa Biondi
    News & Views
  • Isolated gases of ultracold atoms have long provided a window into the study of continuous quantum phase transitions. Discontinuous quantum phase transitions have now been observed in a shaken lattice gas of strongly interacting atoms.

    • Bryce Gadway
    News & Views
  • Individual cilia are typically attached to cell surfaces, where they sweep back and forth. A new study charts the behavioural space of the beating patterns of cilia isolated from the cell.

    • Kirsty Y. Wan
    News & Views
  • Photon emission is a major source of decoherence for several quantum technologies. Four superconducting qubits have been combined to create a ‘dark state’ qubit with strongly suppressed photon emission due to collective interference effects.

    • Stuart J. Masson
    • Ana Asenjo-Garcia
    News & Views
  • Laser accelerators promised to deliver high-energy particle beams for biomedical uses, but have struggled to meet constraints on dose control and stability. An experiment now enables translational research with proton beams at ultrahigh dose rate.

    • Leonida A. Gizzi
    • Maria Grazia Andreassi
    News & Views
  • Optical control of material properties is usually limited to the region that absorbs the light. Coupling to lattice vibrations that travel close to the speed of light allows ultrafast modulation of polarization deep inside a ferroelectric material.

    • Elsa Abreu
    News & Views
  • The discovery of charge density waves in a heavily doped cuprate strengthens proposals that these symmetry-breaking modulations play a role in the anomalous electronic properties of high-temperature superconductors.

    • Mark P. M. Dean
    News & Views
  • Hopes for a topological spin liquid phase in ruthenium trichloride have been previously raised by evidence of Majorana modes at the material’s edges. Transport and bulk thermodynamic measurements now strengthen the case for Majorana fermions.

    • Anja U. B. Wolter
    • Christian Hess
    News & Views
  • A rare-earth ion in a long-lived clock state can control a nearby ensemble of nuclear spins. Interfacing this pristine photon emitter with a small quantum processor may be a route towards making identical solid-state nodes for quantum networks.

    • Claire Le Gall
    News & Views
    • Bart Verberck
    News & Views
  • Although the mass of the electron antineutrino is still eluding direct measurement, the KATRIN experiment with its huge spectrometer has pushed the sensitivity below a billionth of the proton mass.

    • Angelo Nucciotti
    News & Views
  • Entanglement can provide an extra boost in precision, but entangled states are hard to detect. A recent experiment solves this problem by letting the entangling dynamics come full circle — or not, depending on the subtle perturbation to be sensed.

    • Philipp Kunkel
    • Monika Schleier-Smith
    News & Views
  • The interactions between coupled photonic resonators influence the properties of the whole network. Dissipative coupling extends the ability to engineer photonic networks and brings fully controllable, ‘utopian’ networks within reach.

    • Hrvoje Buljan
    • Dario Jukić
    • Zhigang Chen
    News & Views