Nature Physics, Published online: 03 November 2025; doi:10.1038/s41567-025-03082-6
Photon sources used in quantum optics are limited in ways that free electron sources may not be. Now, accelerated electrons have been shown to generate non-classical light — this opens up possibilities for quantum experiments at the nanoscale.
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Updated: daily
- Free electrons as a source of nonclassical light
- Electrically tuning photonic topological quasiparticles in synthetic two-level systemNature Physics, Published online: 03 November 2025; doi:10.1038/s41567-025-03074-6 Photonic quasiparticles are neutral, so controlling them by coupling with external fields is generally impossible. Now, by synthesizing a two-level photonic system, coupling with an electric field becomes possible and enables electrical control.
- Electron‒phonon‒photon excitation in steady nonlinear lasingNature Physics, Published online: 31 October 2025; doi:10.1038/s41567-025-03079-1 Direct coupling between electrons, photons and phonons is challenging due to energy and momentum mismatches. Now, it is possible to achieve steady-state electron–phonon–photon excitation through nonlinear lasing by suppressing spontaneous emission.
- A magnetic knob for strangenessNature Physics, Published online: 31 October 2025; doi:10.1038/s41567-025-03078-2 High-field transport and ultrasound experiments in cuprates tie strange metallic T-linear resistivity to spin dynamics.
- Identifying universal spin excitations in candidate spin-1/2 kagome quantum spin liquid materialsNature Physics, Published online: 31 October 2025; doi:10.1038/s41567-025-03069-3 The hunt for a quantum spin liquid has involved many different material families and models. Now, Zn-barlowite has been found to have similar behaviour to another candidate material, herbertsmithite, hinting there may be universal physical behaviour.
- Universal behaviourNature Physics, Published online: 31 October 2025; doi:10.1038/s41567-025-03089-z Researchers have long sought a realization of a spin liquid in which quantum dynamics destroys classical magnetic order. Neutron-scattering experiments on zinc-barlowite have revealed universal behaviour that strengthens the case for a spin liquid.
- An initiative towards better representation in high-pressure researchNature Physics, Published online: 29 October 2025; doi:10.1038/s41567-025-03077-3 Women in High Pressure, a community tackling gender imbalance in high-pressure research, is driving inclusion, visibility and systemic change — so every scientist can thrive, even under pressure.
- The generalized quantum Stein’s lemma and the second law of quantum resource theoriesNature Physics, Published online: 29 October 2025; doi:10.1038/s41567-025-03047-9 Earlier work establishing an analogue of the second law of thermodynamics for quantum resources relied on a flawed proof of the generalized quantum Stein’s lemma. Now the lemma has been re-proven, restoring the analogy.
