Nature Physics, Published online: 11 August 2025; doi:10.1038/s41567-025-02997-4
Interacting electrons in Hofstadter bands can form symmetry-broken topological states. These are now revealed in magic-angle twisted bilayer graphene, and their properties are influenced by non-uniform quantum geometry.
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- Strongly interacting Hofstadter states in magic-angle twisted bilayer graphene
- Fractional computingNature Physics, Published online: 11 August 2025; doi:10.1038/s41567-025-03012-6 We highlight how an abstract piece of condensed-matter physics — the fractional quantum Hall effect — may be ideally placed to implement quantum computers.
- Optomechanical control of long-lived bulk acoustic phonons in the quantum regimeNature Physics, Published online: 11 August 2025; doi:10.1038/s41567-025-02989-4 A massive phonon mode in a high-overtone bulk acoustic wave resonator has been laser cooled close to its ground state. Its robustness to decoherence establishes the potential of these devices for quantum technologies.
- Metrology supports product safetyNature Physics, Published online: 11 August 2025; doi:10.1038/s41567-025-02987-6 Knowledge gained by combining measurements and simulations leads to increased confidence in the safety of products, as Louise Wright explains.
- Stable singular fractional skyrmion spin texture from the quantum Kelvin–Helmholtz instabilityNature 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.
- Multistable polar textures in geometrically frustrated nematic liquid crystalsNature Physics, Published online: 08 August 2025; doi:10.1038/s41567-025-02966-x Programmable topological dipoles could be used in stimuli-responsive materials. Now it is shown that confinement of an apolar liquid crystal results in controllable polar arrangements of elastic dipoles.
- 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 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.
