Tag: #physics

Preprint: Kaonic-fluorine test finds QED holds in atomic fields above Schwinger limit

SIDDHARTA-2 preprint reports x-ray measurements from kaonic fluorine match Dirac-Fock QED predictions in atomic fields exceeding the Schwinger limit.

#physics, #qed, #kaons, #atomic-physics

Scientists Break 33-Year Ambient-Pressure Superconductivity Record, Map Push Toward Room Temperature

Two PNAS papers report 151 K superconductivity at normal pressure via pressure quenching—and propose a coordinated roadmap to reach room-temperature materials.

#superconductivity, #materials, #physics, #pnas, #quantum

Study Warns Ultra-High-Frequency Gravitational Waves May Be Too Faint to Hear

A new arXiv analysis finds cosmological bounds leave few viable sources of megahertz–gigahertz gravitational waves, tightening targets for would-be detectors.

#gravitationalwaves, #cosmology, #earlyuniverse, #physics, #detectors