Boson-fermion model beyond the mean-field approximation

Journal of Physics Condensed Matter

Volumn 8, Issue 37, 1996, Pages 6923-6932

  Alexandrov, A S ^a  

^a LOUGHBOROUGH UNIVERSITY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; CONDENSATION; ELECTRONS; FREQUENCIES; HIGH TEMPERATURE SUPERCONDUCTORS; MATHEMATICAL MODELS; TEMPERATURE;

BOSONS; COOPER PAIRING; FERMIONS; HIGH TEMPERATURE SUPERCONDUCTIVITY; MOMENTUM DEPENDENCE;

SUPERCONDUCTIVITY;

EID: 0030576884     PISSN: 09538984     EISSN: None     Source Type: Journal    
DOI: 10.1088/0953-8984/8/37/014     Document Type: Article

References (19)

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2. Alexandrov A S and Mott N F 1994 Rep. Prog. Phys. 57 1197; 1994 High Temperature Superconductors and Other Superfluids (London: Taylor and Francis)
3. Alexandrov A S and Ranninger J 1992 Solid State Commun. 81 403
4. Alexandrov A S 1993 Phys. Rev. B 48 10571 Alexandrov A S et al 1996 Phys. Rev. Lett. 76
5. Alexandrov A S 1993 Phys. Rev. B 48 10571 Alexandrov A S et al 1996 Phys. Rev. Lett. 76
6. c Superconductors and Related Materials ed E K H Salje, A S Alexandrov and W Y Liang (Cambridge: Cambridge University Press) pp 453-60
7. Alexandrov A S 1996 Phys. Rev. B 53 1
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13. Abrikosov A A, Gor'kov L P and Dzyaloshiskii I E 1963 Methods of Quantum Field Theory in Statistical Physics (Englewood Cliffs, NJ: Prentice-Hall)
14. Note the opposite sign in our expression for the boson self-energy compared with that in J Ranninger et al 1995 Phys. Rev. Lett. 74 4027. In their recent publication (1996 Phys. Rev. B 53 11 961) these authors corrected their error, but erroneously changed the sign in the electron self-energy.
15. Note the opposite sign in our expression for the boson self-energy compared with that in J Ranninger et al 1995 Phys. Rev. Lett. 74 4027. In their recent publication (1996 Phys. Rev. B 53 11 961) these authors corrected their error, but erroneously changed the sign in the electron self-energy.
16. Alexandrov A S and Beere W H 1995 Phys. Rev. B 51 5887
17. Pines D and Noziéres P 1966 The theory of Quantum Liquids New York: Benjamin/Addison Wesley)
18. Ting C S, Talwar D N and Ngai K L 1980 Phys. Rev. Lett. 45 1213
19. Alascio B R and Proetto C R 1990 Solid State Commun. 75 217 and references therein