Articles in 2022

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  • Generalized measurements that do not correspond to conventional basis projections of the quantum wavefunction are a part of several important protocols in quantum information. These measurements can be certifiably performed on higher-dimensional systems using optical fibre technology.

    • Daniel Martínez
    • Esteban S. Gómez
    • Gustavo Lima
  • The intermediate states in photo-excited phase transitions are expected to be inhomogeneous. However, ultrafast X-ray imaging shows the early part of the metal–insulator transition in VO2 is homogeneous but then becomes heterogeneous.

    • Allan S. Johnson
    • Daniel Perez-Salinas
    • Simon E. Wall
    ArticleOpen Access
  • In bosonic systems, the presence of particles in a given quantum level can enhance the transition rates into that state, an effect known as bosonic stimulation. Bosonic enhancement of light scattering has now been observed in an ultracold Bose gas.

    • Yu-Kun Lu
    • Yair Margalit
    • Wolfgang Ketterle
  • Numerical simulations and spacecraft observations elucidate how ultralow-frequency waves transmit through collisionless shocks, which could not only advance our understanding of shocks but also have implications for space weather modelling.

    • Hui Zhang
    • Terry Z. Liu
    News & Views
  • Epithelial tissues cover our organs and play an important role as physical barriers. The conditions leading to spontaneous hole formation in monolayer epithelia, which challenge epithelial integrity, have now been revealed.

    • Tatiana Merle
    • Magali Suzanne
    News & Views
  • The Earth’s bow shock results from the interaction of the solar wind with the terrestrial magnetic field. With global numerical simulations and spacecraft observations, the transmission of fast magnetosonic waves through the bow shock is revealed.

    • L. Turc
    • O. W. Roberts
    • U. Ganse
    ArticleOpen Access
  • A potential observation of low-energy antihelium-3 nuclei would have profound impacts on our understanding of the Galaxy. Experiments at particle colliders help us understand how cosmic antimatter travels over long distances before reaching Earth.

    • Aihong Tang
    News & Views
  • This month, we celebrate the hundredth anniversary of the iconic experiment by Otto Stern and Walther Gerlach — a milestone in the development of quantum mechanics.

  • The use of quantum effects and digital technologies is changing the measurement of electrical power and energy, as explained by Héctor Laiz.

    • Héctor Laiz
    Measure for Measure
  • Recent experiments utilizing strain have shed light on the role of electronic nematicity in determining the properties of unconventional superconductors. This Perspective reviews these developments and discusses open questions.

    • Anna E. Böhmer
    • Jiun-Haw Chu
    • Ming Yi
  • Multidimensional coherent spectroscopy measurements in iron-based superconductors demonstrate how the coupling between a superconductor and strong light pulses can drive the transition into a non-equilibrium superconducting state with distinct collective modes.

    • L. Luo
    • M. Mootz
    • J. Wang
    ArticleOpen Access
  • Spin ices have magnetic moments arranged on a lattice with many possible ground-state configurations. Quantum effects can ‘melt’ the spin ice into a liquid that fails to form static order even at absolute zero despite strong interactions.

    • Vivien S. Zapf
    • Minseong Lee
    • Priscila F. S. Rosa
    News & Views
  • A clever experiment with a photonic circuit has realized three-dimensional non-Abelian quantum behaviour — introducing an experimental testbed for field and gauge theories.

    • Andrew G. White
    News & Views