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June issue out! This month we feature three papers about quasicrystals, a Review on using plasma-based accelerators for positrons, and discover bags of skyrmions made of light. Check it out: go.nature.com/Jun25

Investigating mesoscopic systems can offer insights into the crossover between few-body and many-body regimes. Atomic arrays inside an optical cavity are now shown to enable the controlled study of critical properties on mesoscopic scales. nature.com/articles/s4156…

One-dimensional critical fermionic models play an important role in many-body physics. Now it has been shown that any entangled state can be extracted from a bipartitioned critical fermion chain with an arbitrarily small change to the initial state. nature.com/articles/s4156…

The concept of resonant valence bond phases has inspired many areas of condensed matter physics, but few realistic models have been identified. Now an analytical solution of such a phase has been found for pyrochlore and related lattices. nature.com/articles/s4156…

Driven quantum systems can form long-lived states with emergent order, but their excitation properties remain largely unexplored. Now, an experiment shows that a driven superfluid exhibits sound modes characteristic of a one-dimensional supersolid. nature.com/articles/s4156…

Clock precision is thought to be fundamentally limited by entropy production in out-of-equilibrium systems. A theoretical work now introduces a quantum clock design where precision grows exponentially with dissipation. nature.com/articles/s4156…

Light at low power densities can be used to manipulate ferromagnetic domains in the two-dimensional van der Waals ferromagnet Fe₃GeTe₂. This capability could be used to engineer the behaviour of devices based on this material. nature.com/articles/s4156…

Landauer’s principle connects entropy and energy dissipation in non-equilibrium processes. An experiment now uses this principle to measure entropy production in a Bose gas to resolve contributions from correlations and dissipation. nature.com/articles/s4156…

Mechanisms for generating spin-polarized currents may be helpful for applications. Now one such mechanism that uses the unusual Landau-level spectrum of WSe₂ under a strong magnetic field is demonstrated. nature.com/articles/s4156…

Trapped ions are promising for electrometry but limited by weak intrinsic spin coupling to electric fields. Now it is shown that using a magnetic field gradient enhances sensitivity and enables precise measurements across subhertz to kilohertz frequencies. nature.com/articles/s4156…

Traditionally, density functional theory could not describe quasicrystals as they lack translational symmetry. An ab initio approach now establishes that the quasicrystalline structures of ScZn₇.₃₃ and YbCd₅.₇ are true ground states. nature.com/articles/s4156…

Digital quantum simulations of fermionic models have so far been based on the Jordan–Wigner encoding, which is computationally expensive. An alternative and more efficient encoding scheme is now demonstrated in a trapped-ion quantum computer. nature.com/articles/s4156…

Magnetostructural changes are usually small and driven by spin–orbit coupling. Now, electron–lattice coupling enhanced by exchange interactions is shown to produce giant magnetostriction in a correlated ferromagnet. nature.com/articles/s4156…

Self-organized criticality can occur in cellular systems, but its origins remain unclear. Now it is shown that cytoskeletal criticality is influenced by the F-actin architecture and myosin active stress. nature.com/articles/s4156…

Quantum spin-ice phases are predicted to have emergent gauge fields and fractionalization. Neutron scattering and thermodynamic measurements of the quantum spin-ice candidate Ce₂Zr₂O₇ show features consistent with these predictions. nature.com/articles/s4156…

Tissues are usually modelled as viscoelastic materials. Now it is shown that intercellular fluid flow, rather than viscoelastic behaviour, dominates the immediate mechanical response of tissues. nature.com/articles/s4156…

Graphene multilayers can host heavy electrons in flat bands alongside light electrons in Dirac cones. Local probes now reveal that a finite Dirac electron population persists at the Fermi level while correlated states form in the flat bands. nature.com/articles/s4156…

When a charge current, a temperature gradient and a magnetic field are applied orthogonally to each other, a conductor is expected to heat or cool. This so-called transverse Thomson effect has now been observed for a bismuth–antimony alloy. nature.com/articles/s4156…

It is unclear how cell compartmentalization emerged in prebiotic conditions. Now it is shown that a temperature gradient in a confined space can bring the core components of a cell together. nature.com/articles/s4156…

The photoinduced hidden metallic state in 1T-TaS₂ has so far been stabilized only at cryogenic temperatures. Now it is shown that accessing an additional mixed-phase long-lived metastable state can stabilize the hidden phase at higher temperatures. nature.com/articles/s4156…