Green functions in the renormalized many-body perturbation theory for correlated and disordered electrons
The ways of introducing and handling renormalizations in the many-body perturbation theory are reviewed. We stress the indispensable role the technique of Green functions plays in extrapolating the weak-coupling perturbative approaches to intermediate and strong couplings. We separately discuss mass...
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| Format: | Article |
| Language: | English |
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Institute for Condensed Matter Physics
2006-01-01
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| Series: | Condensed Matter Physics |
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| Online Access: | http://dx.doi.org/10.5488/CMP.9.3.499 |