Nature Physics, Published online: 01 April 2025; doi:10.1038/s41567-025-02846-4
Reply to: Re-examining magnetic tuning of Casimir forces
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- Reply to: Re-examining magnetic tuning of Casimir forces
- Re-examining magnetic tuning of Casimir forcesNature Physics, Published online: 01 April 2025; doi:10.1038/s41567-025-02845-5 Re-examining magnetic tuning of Casimir forces
- Output control of dissipative nonlinear multimode amplifiers using spacetime symmetry mappingNature Physics, Published online: 01 April 2025; doi:10.1038/s41567-025-02853-5 In many optical systems with time-reversal symmetry, it is possible to control the output waves by shaping the input fields. Now a scheme is presented that works for multimode fibres that lack time-reversal symmetry due to thermal effects.
- Crystal-symmetry-paired spin–valley locking in a layered room-temperature metallic altermagnet candidateNature Physics, Published online: 31 March 2025; doi:10.1038/s41567-025-02864-2 Spin-split bands and certain lattice symmetries are required to generate the spin currents needed for spintronics applications. Now a layered room-temperature antiferromagnet is shown to exhibit anisotropic spin splitting between valleys paired by a crystal symmetry.
- Circadian coupling orchestrates cell growthNature Physics, Published online: 31 March 2025; doi:10.1038/s41567-025-02838-4 Circadian disruption can promote tumour formation. Now it is shown that the loss of circadian synchronization can drive this effect by disrupting the coupling between the circadian rhythm and the cell cycle within individual cells.
- Cooperative hydrodynamics accompany multicellular-like colonial organization in the unicellular ciliate <i>Stentor</i>Nature Physics, Published online: 31 March 2025; doi:10.1038/s41567-025-02787-y How unicellular organisms evolved into multicellular ones is an open question. Now, using unicellular Stentor coeruleus as a model system, the transition between isolated individuals and a coordinated colony is shown to benefit all colony members.
- Yielding behaviour of active particles in bulk and in confinementNature Physics, Published online: 31 March 2025; doi:10.1038/s41567-025-02843-7 Assemblies of active particles display a range of dynamical phenomena. Simulations now show that the transition of an assembly of active particles from a jammed to a fluidized state is similar to the process of mechanical yielding seen in amorphous solids.
- Good feeders make good neighboursNature Physics, Published online: 31 March 2025; doi:10.1038/s41567-025-02793-0 The transition from single cells to multicellularity is a key but not well-understood step in animal evolution. A study shows that loosely-organized colonies of attached single-celled organisms can improve feeding through hydrodynamic cooperation.
