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Article overview
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Excitation spectrum of the two-dimensional attractive Hubbard model | Massimiliano Capezzali
; Hans Beck
; | Date: |
25 Sep 1998 | Subject: | cond-mat | Abstract: | We calculate the one-particle spectral functions above the superconducting transition temperature $T_{C}$, in the framework of a functional integral approach. The coupling of the electronic self-energy to pair fluctuations, which are treated by means of a time-dependent Ginzburg-Landau equation, yields a double-peak structure, around the Fermi wavenumber. The peak separation is essentially temperature-independent, but the structure sharpens when $T_{C}$ is approached. | Source: | arXiv, cond-mat/9809349 | Services: | Forum | Review | PDF | Favorites |
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