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Results tagged with special-relativity
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user 120682
The special theory of relativity describes the motion and dynamics of objects moving at significant fractions of the speed of light.
-2
votes
1
answer
107
views
Raising and lowering indices: how to compute $\sigma_{\mu}$ when we know $\sigma^{\mu}$ [closed]
I have a question about raising and lowering indices. How to compute $\sigma_{\mu}$ when we know $\sigma^{\mu}$? Here
\begin{align}
\sigma^{\mu} = \left( \begin{matrix}
\left( \begin{matrix} 1 & 0 \\ …
- 257
1
vote
1
answer
88
views
The notation $p_{a \dot{b}}$
I am a mathematician and trying to learn scattering amplitude by reading Henriette Elvang and Yu-tin Huang's review Scattering Amplitudes (arXiv:1308.1697).
I have a question about the notation $p_{ …
- 257