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Rosa edited untitled.tex
about 8 years ago
Commit id: 2cba83aa34d6f1c492e009f8a567089266ea1168
deletions | additions
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index ed2933f..a72775d 100644
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...
\end{eqnarray}
In the frequency domain the product of these two functions read:
\begin{eqnarray}
N(\omega)=(e^2/h)\sum_{k\beta,q\gamma} \int \frac{d\epsilon}{2\pi} V_{\beta k} V^*_{\gamma q}G_{\beta
q}>(\omega+\epsilob) q}>(\omega+\epsilon) G^{h,<}_{\gamma k}(\epsilon)
\end{eqnarray}
where
\begin{eqnarray}
...
\begin{eqnarray}
G^{<,h}_{\gamma k}(\omega) = \sum_\beta [G_{\gamma\beta}^r(\omega) V_{\beta k} g^{<,h}_{k}(\omega)+ G_{\gamma\beta}^<(\omega) V_{\beta k} g^{a,h}_{k}(\omega)]
\end{eqnarray}
Then, we have
\begin{eqnarray}
&&N(\omega)=(e^2/h)\sum_{k\beta,q\gamma, \nu\mu} \int \frac{d\epsilon}{2\pi} V_{\beta k} V^*_{\gamma q}
\\ \nonumber
&&[G_{\beta\nu}^r(\omega+\epsilon) V_{\nu q} g^{>}_{q}(\omega+\epsilon)+ G_{\beta\nu}^>(\omega+\epsilon) V_{\nu q} g^{a}_{q}(\omega+\epsilon)]
\\ \nonumber
&&[G_{\gamma\mu}^r(\omega) V_{\mu k} g^{<,h}_{k}(\omega)+ G_{\gamma\mu}^<(\omega) V_{\mu k} g^{a,h}_{k}(\omega)]