amsthm has three separate predefined styles:
\theoremstyle{plain} is the default. it sets the text in italic and adds extra space above and below the \newtheorems listed below it in the input. it is recommended for theorems, corollaries, lemmas, propositions, conjectures, criteria, and (possib...
In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency. Coherence is an ideal property of waves that enables stationary (i.e. temporally and spatially constant) interference. It contains several distinct concepts, which are limiting cases that never quite occur in reality but allow an understanding of the physics of waves, and has become a very important concept in quantum physics. More generally, coherence describes all properties of the correlation between physical quantities of a single wave, or between several waves or wave packets...
In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency. Coherence is an ideal property of waves that enables stationary (i.e. temporally and spatially constant) interference. It contains several distinct concepts, which are limiting cases that never quite occur in reality but allow an understanding of the physics of waves, and has become a very important concept in quantum physics. More generally, coherence describes all properties of the correlation between physical quantities of a single wave, or between several waves or wave packets...
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Would it be possible to have a laser that uses atomic nuclear transitions instead of electronic ones?
These are responsible for gamma-decay, so they would produce very high frequency radiation which could potentially be useful.
How would one pump the laser medium?
My notes from an introductory course about lasers say that
There does not exist a laser emitting in the X-ray because the spontaneous decay lifetime is too short to have stimulated emission. In fact, it goes with the inverse of the frequency of the transition, therefore being small for high f...
