Superconducting correlations in any dimensionality

Details Superconducting correlations in any dimensionality Superconducting correlations in any dimensionality

1998-07-29

arxiv.org/abs/cond-mat/9807381v1

Physics

Condensed Matter

Superconductivity

4 pages, REVTEX, one eps figure

Scientific paper

We consider the static anomalous Cooper loop for the electron gas of arbitrary spatial dimensionality, D. This object enters the mean-field equation for the superconducting temperature, T_c. The closed expression in r- space is found at T=0 as an analytical function of D. Its counterpart in q-space has a logarithmic singularity at q=0 and no singularities at q=2k_F for any D. We extend our analysis for the case of finite T and note that in two dimensions the bound state of two electrons is possible even in the limit k_F -> 0. We comment on the possible implications of this fact for the theory of high-T_c cuprates.

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