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The near-zero thermal expansion of Invar alloy Fe65Ni35 is technologically important but still unexplained. Measurements show that this phenomenon can be explained by the cancellation of magnetic and phonon contributions to the alloy’s entropy.
Generating high harmonics or attosecond pulses of light is normally thought of as a classical process, but a theoretical study has now shown how the process could be driven by quantum light.
Measuring the transmission matrix of disordered structures has so far been limited to the domain of linear systems. Now it has been measured for nonlinear disorder, with exciting implications for information capacity.
Regenerative animals accurately regrow lost appendages. Now, research suggests that mechanical waves propagating from the amputation edge have a key role in this process.
Amorphous gel structures are present in our everyday lives in the form of food, cosmetics, and biological systems. Experiments now show that their formation cannot be explained within the framework of equilibrium physics.
Exploring the combined effects of many-body interactions and topology is experimentally challenging. Now, researchers have shown that strong interparticle interactions force ultracold atoms to shift as a whole or one by one, or break quantization in a topological pump.
The two-component bacterial MinDE protein system is the simplest biological pattern-forming system ever reported. Now, it establishes a mechanochemical feedback loop fuelling the persistent motion of liposomes.
Multi-colour light fields allow a nonlinear coupling between free electrons and propagating light by stimulated Compton scattering, without the need for near fields to mediate the interaction.
In principle, quantum entanglement gives advantages in radar detection even under noisy and lossy operating conditions. More than a decade after the proposal, the predicted quantum advantage has finally been demonstrated at microwave frequencies.
Whether Anderson localization of light is possible in three dimensions has long been an open question. Numerical calculations have now shown that it can be done with a disordered arrangement of metal particles.
Two studies of electrons generated from laser-triggered emitters have found highly predictable electron–electron energy correlations. These studies, at vastly different energy scales, may lead to heralded electron sources, enabling quantum free-electron optics and low-noise, low-damage electron beam lithography and microscopy.
A real qubit is not an isolated unitary quantum system but is subject to noise from its environment. An experiment has now turned this interaction on its head, controlling the environment using the qubit itself.
The structure of disordered materials typically ages, but sometimes also rejuvenates, resulting in intriguing memory properties. Progress in numerical simulations of spin glasses has now enabled replication of such phenomena from simple models.
Hydrides are promising for harnessing high-temperature superconductivity, albeit with the need of extreme pressures. New experimental protocols establish a magnetic route to detect and study superconductivity compatible with high-pressure devices.
Laser cooling of neutral and positively charged ions is well mastered, but cooling of anions remains largely unexplored. Now, laser-induced evaporative cooling of negatively charged molecules has been achieved.
