Boson-fermion model beyond mean-field approximation
A model of hybridized bosons and fermions is studied beyond the mean field approximation. The divergent boson self-energy at zero temperature makes the Cooper pairing of fermions impossible. The frequency and momentum dependence of the self- energy and the condensation temperature $T_{c}$ of initial...
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| Format: | Default Preprint |
| Published: |
1996
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| Subjects: | |
| Online Access: | https://hdl.handle.net/2134/1184 |
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