Nature Physics, Published online: 03 January 2025; doi:10.1038/s41567-024-02713-8
A first-order, disorder-driven, superconductor–insulator phase transition is demonstrated. This is in contrast with the usually observed second-order transition and highlights the role of Coulomb interactions between preformed Cooper pairs.
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- First-order quantum breakdown of superconductivity in an amorphous superconductor
- Suppression of Bogoliubov momentum pairing and emergence of non-Gaussian correlations in ultracold interacting Bose gasesNature Physics, Published online: 03 January 2025; doi:10.1038/s41567-024-02700-z In strongly correlated systems, weak interactions can lead to the formation of correlated pairs of bosons with opposite momenta. Now, an experiment on ultracold bosons shows the breakdown of this effect in the strong interaction regime.
- Activity-induced annealing leads to a ductile-to-brittle transition in amorphous solidsNature Physics, Published online: 02 January 2025; doi:10.1038/s41567-024-02724-5 Active glasses are dense, disordered structures made up of motile constituents. Simulations now show that motility-driven annealing in such systems leads to mechanical changes, including increased brittleness.
- Emergent interaction-driven elliptic flow of few fermionic atomsNature Physics, Published online: 02 January 2025; doi:10.1038/s41567-024-02705-8 Hydrodynamics can describe the collective behaviour of many-body systems when all the relevant length scales are separable. Now, an experiment with ultracold atoms shows signatures of hydrodynamic behaviour in a regime where length scales are comparable.
- Fluids constructed atom by atomNature Physics, Published online: 02 January 2025; doi:10.1038/s41567-024-02646-2 Macroscopic fluid dynamics is usually thought to emerge from vast numbers of microscopic particles. Now, fluid-like behaviour has been observed in systems of startlingly few atoms.
- Spinning into new regimesNature Physics, Published online: 02 January 2025; doi:10.1038/s41567-024-02730-7 Collectives of self-driven particles display a plethora of behaviours that are gradually being discovered. Experiments with rotating particles in intermediate Reynolds flow now harness a mostly unexplored inertial regime for synthetic active matter.
- Observation of microscopic confinement dynamics by a tunable topological <i>θ</i>-angleNature Physics, Published online: 20 December 2024; doi:10.1038/s41567-024-02702-x Topological terms arise naturally in gauge theories but have been difficult to implement in quantum simulators. Now, a tunable topological θ-angle is demonstrated with a cold-atom platform.
- Publisher Correction: Heavy-tailed neuronal connectivity arises from Hebbian self-organizationNature Physics, Published online: 19 December 2024; doi:10.1038/s41567-024-02748-x Publisher Correction: Heavy-tailed neuronal connectivity arises from Hebbian self-organization
