Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A short-lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics, chemistry An
exotic atom consisting of apositron and anelectron , but having nonucleus - noun physics An
onium consisting of apositron (anti-electron) and anelectron , as a particle–anti-particle bound pair.
Etymologies
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Examples
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But stabilize the matter-antimatter mix into a substance called positronium — as a couple of UC Riverside physicists did for a record-breaking 100 nanoseconds — and you're on your way to turning that jolt into a focused, ultrapowerful laser.
WTF?! The Positronium Superlaser Is Almost Complete. Muh-ha-ha-ha! 2007
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(If you are willing to postulate a matter-antimatter explosive, aka a positronium bomb, then P can increase by the maximal amount from 0 to e/3.)
Dark Matter: Still Existing Sean 2007
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A team including David Cassidy--- who will be played in the movie by David Cassidy--- has succeeded in merging di-positronium with ordinary positrons in order to produce a powerful ray called the gamma-ray annihilation laser!
Archive 2007-09-01 Walter Jon Williams 2007
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And face it--- doesn't "di-positronium" sound like something out of a bad science fiction film?
Archive 2007-09-01 Walter Jon Williams 2007
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I'm throwing in my dice with BEC molecular positronium for the gamma laser.
The Gamma Laser James Killus 2007
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A team including David Cassidy--- who will be played in the movie by David Cassidy--- has succeeded in merging di-positronium with ordinary positrons in order to produce a powerful ray called the gamma-ray annihilation laser!
Annihilation! Cool Flying Dudes! And other stories from the world of science . . . Walter Jon Williams 2007
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Also, di-positronium is made from electrons and positrons which are hardly "ordinary" and can annihilate itself; no need to stick in extra positrons...
Annihilation! Cool Flying Dudes! And other stories from the world of science . . . Walter Jon Williams 2007
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And face it--- doesn't "di-positronium" sound like something out of a bad science fiction film?
Annihilation! Cool Flying Dudes! And other stories from the world of science . . . Walter Jon Williams 2007
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The idea is that small kinetic mixing of the ordinary and mirror photons may exist which would mix ordinary and mirror ortho positronium, leading to maximal ortho positronium - mirror orthopositronium oscillations.
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I also began planning the experiment on the optical spectroscopy of positronium.
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