basic_notions:units
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basic_notions:units [2018/03/27 13:20] jakobadmin created |
basic_notions:units [2018/04/06 15:37] (current) jakobadmin [Concrete] |
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| * A great discussion can be found in Section 2.1 in Klauber's "Student-friendly Quantum Field Theory". | * A great discussion can be found in Section 2.1 in Klauber's "Student-friendly Quantum Field Theory". | ||
| * See also [[https://arxiv.org/pdf/1506.01951.pdf|BABEL OF UNITS]] by Neal J. Carron | * See also [[https://arxiv.org/pdf/1506.01951.pdf|BABEL OF UNITS]] by Neal J. Carron | ||
| + | |||
| + | ---- | ||
| + | |||
| + | Any physical quantity can be expressed by using as fundamental | ||
| + | unit either energy, mass, length or time. | ||
| + | |||
| + | \begin{align} | ||
| + | ct&\approx \ell\Longrightarrow {\rm time}\approx{\rm length},\\ | ||
| + | E&\approx mc^2\Longrightarrow {\rm energy}\approx{\rm mass},\\ | ||
| + | E&\approx pv\Longrightarrow {\rm energy}\approx{\rm momentum},\\ | ||
| + | Et&\approx \hbar\Longrightarrow {\rm energy}\approx{\rm (time)^{-1}}\approx | ||
| + | {\rm (length)^{-1}}. | ||
| + | \end{align} | ||
| + | |||
| <tabbox Abstract> | <tabbox Abstract> | ||
basic_notions/units.1522149618.txt.gz ยท Last modified: 2018/03/27 11:20 (external edit)
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