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9.1 $ \gamma$-Matrizen


$\displaystyle \Tr$(1) = 4 (9.1)
$\displaystyle \Tr$($\displaystyle \mbox{ungerade Zahl von $\gamma$'s}$) = 0 (9.2)
$\displaystyle \Tr$($\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$) = 4g$\scriptstyle \mu$$\scriptstyle \nu$ (9.3)
$\displaystyle \Tr$($\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma^{\sigma}_{}$) = 4(g$\scriptstyle \mu$$\scriptstyle \nu$g$\scriptstyle \rho$$\scriptstyle \sigma$ - g$\scriptstyle \mu$$\scriptstyle \rho$g$\scriptstyle \nu$$\scriptstyle \sigma$ + g$\scriptstyle \mu$$\scriptstyle \sigma$g$\scriptstyle \nu$$\scriptstyle \rho$) (9.4)
$\displaystyle \Tr$($\displaystyle \gamma^{5}_{}$) = 0 (9.5)
$\displaystyle \Tr$($\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma^{5}_{}$) = 0 (9.6)
$\displaystyle \Tr$($\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma^{\sigma}_{}$$\displaystyle \gamma^{5}_{}$) = -4i$\displaystyle \varepsilon^{\mu \nu \rho \sigma}_{}$ (9.7)
$\displaystyle \Tr$($\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma^{\sigma}_{}$ ... ) = $\displaystyle \Tr$( ... $\displaystyle \gamma^{\sigma}_{}$$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$ ... ) (9.8)
$\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma_{\nu}^{}$ = 4 (9.9)
$\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma_{\mu}^{}$ = -2$\displaystyle \gamma^{\nu}_{}$ (9.10)
$\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma_{\mu}^{}$ = 4g$\scriptstyle \nu$$\scriptstyle \rho$ (9.11)
$\displaystyle \gamma^{\mu}_{}$$\displaystyle \gamma^{\nu}_{}$$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma^{\sigma}_{}$$\displaystyle \gamma_{\mu}^{}$ = -2$\displaystyle \gamma^{\rho}_{}$$\displaystyle \gamma^{\sigma}_{}$$\displaystyle \gamma^{\nu}_{}$ (9.12)


next up previous contents
Next: 9.2 4-Dimensionaler -Tensor Up: 9. Quantenfeldtheorie Previous: 9. Quantenfeldtheorie   Inhalt
Alexander Wagner
2000-04-14