Nature Physics, Published online: 11 December 2025; doi:10.1038/s41567-025-03118-x
An electrical method is shown to reliably introduce nonreciprocal behaviour across a Josephson junction made of high-temperature cuprate superconductors, which then, under microwave irradiation, forms a ‘quantum superconducting diode’. The device is magnetic-field-free, works at a temperature of 77 K with a diode efficiency of 100%, and, owing to Shapiro steps that quantize the output voltage, has robust noise-filtering.
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- A super-conducting diode with ultimate efficiency and noise resilience at 77 K
- Temporal anti-parity–time symmetry in diffusive transportNature Physics, Published online: 10 December 2025; doi:10.1038/s41567-025-03129-8 Applying concepts from non-Hermitian physics to diffusive systems enables the static control of heat transport. Now, this notion is expanded to dynamic control, including a demonstration of programmed thermal transport in a metamaterial.
- Arbitrary control over multimode wave propagation for machine learningNature Physics, Published online: 08 December 2025; doi:10.1038/s41567-025-03094-2 Photonic processors are limited by the bulkiness of discrete components and wiring complexity. An experiment now demonstrates a reprogrammable two-dimensional waveguide that performs neural network inference through multimode wave propagation.
- Hofstadter’s butterfly turns magneticNature Physics, Published online: 05 December 2025; doi:10.1038/s41567-025-03126-x A fractal energy pattern known as the Hofstadter butterfly has now been observed separately for each spin in a two-dimensional semiconductor, revealing a cascade of magnetic transitions.
- Twist-induced non-Hermitian topology of exciton–polaritonsNature Physics, Published online: 04 December 2025; doi:10.1038/s41567-025-03115-0 Strongly coupled light–matter systems could offer enhanced manipulation of topological phenomena. Now, tunable non-Hermitian effects are demonstrated with exciton–polaritons induced by a twist degree of freedom.
- Electrically tuned light topologyNature Physics, Published online: 03 December 2025; doi:10.1038/s41567-025-03116-z Controlling topological photonic quasiparticles is a prerequisite for their implementation in devices. Now, their precise manipulation has been demonstrated using synthetic gauge fields based on the manipulation of the material’s dielectric index.
- Protein pattern morphology and dynamics emerging from effective interfacial tensionNature Physics, Published online: 02 December 2025; doi:10.1038/s41567-025-03101-6 Protein patterns enable cellular processes. A general theory now identifies a non-equilibrium mechanism that generates an effective interfacial tension, shaping the geometry and intrinsic length scales of steady-state protein patterns.
- Quantum superconducting diode effect with perfect efficiency above liquid-nitrogen temperatureNature Physics, Published online: 28 November 2025; doi:10.1038/s41567-025-03098-y A device for rectifying supercurrents at liquid-nitrogen temperature with high efficiency is demonstrated. This is a practical step towards implementing dissipationless electronics.
