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Experiments indicate an abrupt change in the pairing gap near the nematic transition in the FeSe_1−xS_x iron-based superconductor. Here, Setty et al. propose to explain them via a novel spin-1/2 paired state with topologically protected zero-energy excitations over a finite area nodal surface.

Strongly correlated materials can exhibit deviations from Fermi-liquid behavior partly due to anomalies in the density of states at the Fermi level, such as van Hove singularities. Here, the authors investigate the unusual Fermi liquid behavior of calcium-doped strontium ruthenate and find an unusual variation of the Kadowaki-Woods ratio which may originate from disorder.

Non-line-of-sight imaging can recover the 3D geometry of hidden objects, but is limited by weak multibounce signals. Here, the authors introduce a multipixel time-of-flight NLOS imaging approach, combining array detectors and a fast algorithm, for live reconstruction of natural nonretroreflective objects.

Measurements on a chiral magnet show that non-symmorphic symmetries enforce topological crossings exactly at the Fermi level in certain materials; these crossings can be controlled by an applied magnetic field.

A single-shot full-vector-field measurement technique for intense, ultrashort laser pulses is studied, demonstrating the approach on systems ranging from high-repetition-rate oscillators to petawatt-class lasers.

Climate change may impact forest disturbances, though local variability is high. Here, Sommerfeld et al. show that disturbance patterns across the temperate biome vary with agents and tree traits, yet large disturbances are consistently linked to warmer and drier than average conditions.

A thermodynamic study of doped single crystals of NbFe₂ reveals the phase diagram of this system as a function of temperature, magnetic field and Nb doping — which includes an unusual quantum tricritical point.

Current implementations of non-line-of-sight imaging use reconstruction algorithms that are difficult to implement fast enough for real-time application using light efficient equipment. The authors present an algorithm for non-line-of-sight imaging that is low complexity and allows fast and efficient reconstruction on a standard computer.

A platform using matched patient-derived lung tumouroids and healthy lung organoids enables accurate examination of patient responses to CAR T therapy and offers a faithful framework for improved CAR T design.

Sperm use external cues to find the egg using ill-defined principles. Here the authors use holographic microscopy and optochemical tools to study sperm swimming in light-sculpted chemical 3D landscapes; they show that sperm translate the temporal stimulation pattern into multiple swimming behaviours to orient deterministically in a gradient.

The path to consistent cgs magnetic units has been long and winding, as is the process of universally adopting SI units. Andreas Trabesinger peeks into the history of the field.

Algorithms based on diffractive wave propagation of light offer effective imaging of complex scenes hidden from direct view.

Observation of a faint Fermi surface inside the pseudogap of an electron-doped cuprate suggests that Cooper pairing is mediated by antiferromagnetic spin fluctuations.

Alkali metals at high pressures have a liquid–liquid transition that is difficult to study in detail. Numerical calculations now suggest that the higher-pressure state is an electride liquid, in which electrons behave like localized anions.

A pangenome analysis of 76 wild and domesticated barley accessions in combination with short-read sequence data of 1,315 barley genotypes indicates that allelic diversity at structurally complex loci may have helped crop plants to adapt to agricultural ecosystems.

Defects of a passive nematic liquid crystal made from actin filaments pattern the collective behaviour of active microtubules, creating macroscopic polar patterns and chiral loops.

In magnetoelectric materials, the magnetization can be controlled by the application of an electric field, making it comparatively easy to switch magnetization, which is attractive for data storage and other proposed devices. Unfortunately, the effect in single-phase materials is typically fairly weak. Here Fogh et al. demonstrate a two orders of magnitude enhancement of the magnetoelectric coupling in LiNi_0.8Fe_0.2PO₄ compared to the parent compounds.

Collisions between two individual electrons in a quantum nanoelectronic circuit revealed a mutual interaction fully mediated by Coulomb repulsion—an essential building block for two-qubit logic implementations with flying electrons.

The quantum simulation of lattice gauge theories is anticipated to be an important scientific application of future quantum computing capabilities. This work elaborates on a formulation of lattice gauge theory quantum simulation that aims to require quantum computing techniques akin to those for simulating ϕ⁴ scalar field theory by utilizing non-compact continuous variable quantum degrees of freedom.

Strong correlation effects in metals lead to unconventional emergent behavior that depends on the nature of interactions at the microscopic scale. Deng et al. identify distinct signatures of the so-called Mott and Hund regimes, which may guide the theoretical understanding of correlated materials.

A simple system for studying self-organization in biology comprises driven actin filaments, thought to interact primarily via binary collisions. Angle-resolved statistics suggest that the transition to polar order is driven by multi-filament events.

Collective motion is a ubiquitous self-organization phenomenon that can be observed in systems ranging from flocks of animals to the cytoskeleton. Similarities between these systems suggest that there are universal underlying principles. This idea can be tested with 'active' or 'driven' fluids, but so far such systems have offered limited parameter control. Here, an active fluid is studied that contains only a few components — actin filaments and molecular motors — allowing the control of all relevant system parameters.

Cell membrane protrusions and invaginations are both driven by actin assembly but the mechanism leading to different membrane shapes is unknown. Using a minimal system and modelling the authors reconstitute the deformation modes and identify capping protein as a regulator of both deformation types.

The development of glands involves cylindrical branches transforming into spherical alveoli. Now there is evidence to suggest that this process can be understood as a budding instability driven by a decrease in tension anisotropy in the tissue.