Physics – Condensed Matter
Scientific paper
1998-09-25
Physics
Condensed Matter
3 pages, revtex, 3 embedded figures (eps), submitted to Physica C
Scientific paper
10.1016/S0921-4534(99)00104-5
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.
Beck Hans
Capezzali Massimiliano
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