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quantum jump

Physics. an abrupt transition of a system described by quantum mechanics from one of its discrete states to another, as the fall of an electron in an atom to an orbit of lower energy.
any sudden and significant change, advance, or increase.
Also called quantum leap.
Origin of quantum jump
First recorded in 1925-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for quantum jump
Historical Examples
  • I have something to tell you,” said Brandon grinning, “about the quantum jump.

    The Quantum Jump Robert Wicks
quantum jump in Science
quantum jump  
A change from one quantum state to another, as when an electron orbiting a nucleus moves from one shell to another with the loss or gain of a quantum of energy.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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