Continuous unitary transformation approach to pairing interactions in statistical physics
We apply the flow equation method to the study of the fermion systems with pairing interactions which lead to the BCS instability signalled by the appearance of the off-diagonal order parameter. For this purpose we rederive the continuous Bogoliubov transformation in a fashion of renormalization gro...
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| Format: | Article |
| Language: | English |
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Institute for Condensed Matter Physics
2008-06-01
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| Series: | Condensed Matter Physics |
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| Online Access: | http://dx.doi.org/10.5488/CMP.11.2.195 |