quantum jump

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quantum jump

A sudden or important change or improvement. That brand-new shopping center is a quantum jump from the old, run-down mall that used to be in that location.
See also: jump, quantum
References in periodicals archive ?
In other words, the act of observing an atom to determine its state can interfere with quantum jumps between atomic energy levels.
While an ion was going through this quantum jump, the researchers sent in short pulses of light to determine the ion's state.
According to quantum theory, the more frequently one tries to observe a system's state as the system is going through a quantum jump, the more likely the system will show up in its initial state.
In addition, by using traps holding individual, singly charged ions, researchers have managed to detect quantum jumps, in which an electron shifts from one energy level to another.
When the star's light is spread out into a spectrum, these sharp quantum jumps appear as bright or dark lines superimposed on the continuous rainbow.
Nobody had been able to test the theory of quantum jumps on the level of the single atom.
Now there are two claims to the observation of single quantum jumps in single atoms, one from a group at the University of Washington in Seattle (Warren Nagourney, Jon Sandberg and Hans Dehmelt), the other from a group at the University of Hamburg (Thomas Sauter, Werner Neuhauser, Rainer Blatt and Peter E.
Unless they see such quantum multiples and a hierarchy of energy states separated by these quantum jumps, experimenters cannot say they have really seen quantized phenomena.
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