8legs: Tokyo university of science

#1 out of 1

Scientists catch antimatter “atom” acting like a wave for the first time

Researchers observed wave-like interference in positronium beams, showing its quantum nature for the first time.
The experiment used a highly controlled positronium beam directed at graphene to produce a clear diffraction pattern.
Positronium, a neutral atom formed by an electron and a positron, behaves as a single quantum object in the beam.
The researchers produced positronium by creating negatively charged positronium ions and using a timed laser pulse to release an electron.
Results were published in Nature Communications and are linked to potential future gravity tests with antimatter.
The study advances the understanding of matter-wave diffraction for equal-mass constituents like positronium.
This work may enable precision antimatter studies and experiments on how gravity affects antimatter.
The graphene sheet served as a diffraction target with atom spacing matching positronium wavelengths.
Positronium beams achieved energies up to 3.3 keV with narrow energy spreads for clearer diffraction.
The findings reinforce the long-standing wave-particle duality concept in quantum mechanics.

Vote 0