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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.
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.
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.
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.
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.
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.
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.
Measurements of the inelastic cross section of anti-3He allow the estimation of the transparency of the Milky Way to the propagation of these light antinuclei produced in either cosmic-ray collisions or annihilation of dark-matter particles.
Substrate stiffness influences cellular cluster migration through collective durotaxis. Now, the underlying mechanism of this process is explained by considering the wetting dynamics of the clusters.
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.
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.
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.
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.
A clever experiment with a photonic circuit has realized three-dimensional non-Abelian quantum behaviour — introducing an experimental testbed for field and gauge theories.