Nature Physics, Published online: 08 August 2025; doi:10.1038/s41567-025-02982-x
The quantum Kelvin–Helmholtz instability can induce non-trivial topological excitations. Now a proof-of-principle experiment demonstrates the emergence of a stable singular fractional skyrmion spin texture originating from this quantum instability.
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- Stable singular fractional skyrmion spin texture from the quantum Kelvin–Helmholtz instability
- Frustrated electron hopping from the orbital configuration in a two-dimensional latticeNature Physics, Published online: 07 August 2025; doi:10.1038/s41567-025-02953-2 Electron hopping in geometrically frustrated lattices can result in a rich variety of unusual behaviours. Now, the orbital arrangement in a van der Waals metal with a non-frustrated, primitive lattice is found to show similar effects.
- Fast optical control of a coherent hole spin in a microcavityNature Physics, Published online: 07 August 2025; doi:10.1038/s41567-025-02988-5 Spin–photon interfaces provide a connection between quantum information stored in atomic or electronic spins and optical communications networks. A quantum photon emitter with long-lived, controllable coherent spin has now been demonstrated.
- Frustrated electron motion arising from the orbital configuration in a layered metalNature Physics, Published online: 07 August 2025; doi:10.1038/s41567-025-02962-1 Electron hopping on geometrically frustrated lattices leads to unusual, correlated phenomena, but materials whose structures match such lattices are rare. Now, in Pd5AlI2, frustrated electron motion is shown to emerge from the atomic orbital configuration, rather than the lattice geometry — which means the search space for unusual electronic structures and correlated behaviour can be broadened to materials with simpler, more common structures.
- High-purity quantum optomechanics at room temperatureNature Physics, Published online: 06 August 2025; doi:10.1038/s41567-025-02976-9 Observing quantum effects in a mechanical oscillator requires it to be close to a pure quantum state, rather than a thermal mixture. Here a librational mode of a levitated nanoparticle is cooled close to its ground state without using cryogenics.
- Twisted topology visualized in real spaceNature Physics, Published online: 06 August 2025; doi:10.1038/s41567-025-02963-0 Microscopic details of the interplay between correlated electron states and topology are visualized in twisted transition metal dichalcogenide bilayers using scanning tunnelling microscopy and spectroscopy.
- Author Correction: High-efficiency optical training of itinerant two-dimensional magnetsNature Physics, Published online: 04 August 2025; doi:10.1038/s41567-025-03013-5 Author Correction: High-efficiency optical training of itinerant two-dimensional magnets
- Control of collective activity to crystallize an oscillator gasNature Physics, Published online: 04 August 2025; doi:10.1038/s41567-025-02957-y In active matter systems, increasing density usually reduces activity. Now, in a system where density enhances activity, collective motion is shown to arise from non-motile oscillators when they are confined.
