Timeline for How to get conductivity from Green function $\mathcal{G}(x_1,x_2,\tau)$ of inhomogeneous system?
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| Oct 23, 2014 at 9:11 | comment | added | xiaohuamao | Thanks for the reference. It seems to be a good book that I missed. By ensemble average, do you mean sth. like averaging over the possible positions which the impurities may have in the solid? Thereafter, momentum conservation is recovered and we can calculate $\mathcal{G}(\vec{p};\mathrm{i} \omega_n)$, which is the "average Green function" you mentioned? Why does it decay rapidly? Thanks! | |
| Oct 15, 2014 at 6:46 | history | answered | Nanite | CC BY-SA 3.0 |