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Entanglement is not the only type of quantum correlation. Quantum discord is a broader measure of such non-classical interactions. An experimental investigation now shows how quantum discord can be consumed to encode information, even in the absence of entanglement.

Observation-based modelling suggests that recent acceleration of Earth’s north magnetic pole towards Siberia can be linked to elongation of a lobe of negative magnetic flux at the core–mantle boundary beneath Canada.

Here they show that heterodimerization of the receptor tyrosine kinases PDGFRa and PDGFRb negatively affects downstream ERK1/2 signaling and cellular proliferation, due in part to rapid internalization mediated by binding to the unconventional myosin protein MYO1D.

Sensory signal attributes can be disentangled exploiting the computation-in-superposition capability of hyperdimensional computing, in-memory computing and associated intrinsic device-level stochasticity.

Designing efficient, fast and low power consumption phase change memories remains a challenge. Aryana et al. propose a strategy to reduce operating currents by manipulating the interfacial thermal resistance between the phase change unit and the electrodes without incorporating additional insulating layers.

Existing methods for non-invasively monitoring water flow in plants have limited spatial/temporal resolution. Here, the authors report that Raman microspectroscopy, complemented by hydrodynamic modelling, can monitor hydrodynamics within living root tissues at cell- and sub-second-scale resolutions.

Hybrid photonic–electronic systems are essential for high-throughput neuromorphic computing. Here, the authors report an in-memory photonic–electronic dot-product engine with decoupled electronic programming of the phase-change memory cells and parallel photonic computation with high-bit operation, low energy consumption, and high accuracy.

The control of turbulent flows is crucial for improving efficiency in engineering systems. Here, authors show in a numerical simulation that using deep reinforcement learning to control surface actuators can successfully mitigate turbulent flow separation, paving the way for new advancements in turbulence control.

Among the satellite meetings of the IUPAP StatPhys29 conference was a meeting in Lviv, Ukraine — currently at war. Three of the organizers describe how the meeting came to be and the challenges they faced.

Synthesis of fluorinated organic molecules is of high interest for agrochemistry and pharmaceutics, but efficient and general reagents for introducing -CF₂- groups are lacking. Here, the authors report the synthesis of 3,3-difluoropropen-1-yl ammonium salts as stable and scalable gem-difluoromethylation reagents, which react with a range of nucleophiles under mild conditions and high regioselectivity.

Here the authors report a method for cryogenic electron microscopy imaging of human brain tissue samples directly obtained from autopsy, offering insights into cellular ultrastructure and a tool to study potential pathologic features.

Here the authors identify TNIP1 as a risk factor for a fatal neurodegenerative disorder and discover specific genetic loci associated with the three main subtypes of this disorder. The findings highlight distinct disease mechanisms, emphasizing the roles of immunity and the notch signaling pathway.

Synthetic methods aiming at minimizing reaction steps while increasing molecular complexity are highly sought after by organic chemists. Here, the authors report two cascade procedures combining nucleophilic substitution, palladium-catalyzed Heck and C–H activation reactions for the synthesis of spiro-fused heterocycles.

A unified description of the dynamics of structurally disordered materials is challenging. Simulations of model systems now show that percolation theory provides a framework unifying the two most prominent relaxation processes in supercooled liquids and glasses.

In wildlife tagging, stress from capture and handling can alter post- release behavior and potentially study interpretations. This study of 42 mammal species shows that these effects diminish within 4–7 days, and quicker for animals in high human activity areas indicating adaptation to disturbance.

In this work, Milano et al. show that neuromorphic nanowire networks are stochastic dynamical systems where dynamics can be holistically described as an Ornstein-Uhlenbeck process, enabling the investigation of the role of deterministic trajectories and stochastic effects on their computational capabilities in the framework of physical reservoir computing.

Memristors with on/off ratios up to 10⁸ and analogue resistive switching can be created using the intercalation/de-intercalation of silver ions in a two-dimensional metallic electrode to modulate ion migration.

Precise adaptation of motor timing is vital in sensorimotor coordination. Here, the authors show that mice can rapidly adjust conditioned eyelid closure between delay and trace eyeblink conditioning, and that this adaptation is dependent on the modulation of medial prefrontal cortex activity.

Integrated nanophotonics is an emerging research direction that has attracted great interests. Here, the authors show upon substituting Te with Se, the thermal conductivity of ordered Ge₂Sb₂Te₅ transitions from an electron to a phonon dominated regime.

Security proofs against general attacks are the ultimate goal of QKD. Here, the authors show how the Generalised Entropy Accumulation Theorem can be used, for some classes of QKD scenarios, to translate security proofs against collective attacks in the asymptotic regime into proofs against general attacks in the finite-size regime.

Experimental determination of the contact angle of a two-dimensional film is crucial to understand its wettability characteristics. Here, the authors use the captive bubble method to estimate a contact angle value of 42° ± 3° for a monolayer graphene film.

Monolayer semiconductors reveal their crystal quality and valleytronic properties in two-dimensional polarimetric imaging.

In biology, individuals are known to achieve higher navigation accuracy when moving in a group compared to single animals. The authors show that simple self-propelled robotic modules that are incapable of accurate motion as individuals can achieve accurate group navigation once coupled via deformable elastic links.

In most optical computing schemes, the size of the chip increases quadratically with the problem size. Here, the authors demonstrate an architecture for optical convolutional neural networks which, while losing the independent reconfigurability of the kernels, allows for linear scaling of the circuit size.

The precise characterization of magnetic fields with a bandwidth of up to 3 GHz and localized on a nanometric scale is achieved by means of the coherent control of single electron and nuclear spins.

Owing to the presence of a valley degree of freedom, atomically thin transition metal dichalcogenides show promise for room temperature valleytronic applications. Here, the authors use polarization-resolved Raman spectroscopy to gain insight to the exciton-phonon coupling in charge tunable single layer MoS₂.

A mesoscopic cellular automaton arising from a microscopic reaction–diffusion system as a function of skin thickness is observed in ocellated lizards, showing that cellular automata are not merely abstract computational systems, but can directly correspond to processes generated by biological evolution.

The dynamic wetting of sliding drops, particularly of water, remains poorly understood. New experimental techniques have shown that, in addition to viscous dissipation, other energy dissipation mechanisms such as adaptation, electrostatic charging and deformation can contribute significantly and affect the motion of the drops.

This study provides a framework for mass spectrometry imaging experiments across biological replicates through machine learning-assisted processing of spatial lipidomics data from mouse lungs following allergen and ozone exposure.

Magnetic anisotropy in mixed rare earth iron garnet films is shown to originate from the atomic ordering of the rare earth cations during growth of the film. Cation ordering on inequivalent sites provides a powerful strategy to engineer the magnetic properties of complex oxides.