Many Body Correlation Corrections to Superconducting Pairing in Two Dimensions.
Abstract
We demonstrate that in the strong coupling limit (the superconducting gap is as large as the chemical potential μ), which is relevant to the high-Tc superconductivity, the correlation corrections to the gap and critical temperature are about 10\% of the corresponding mean field approximation values. For the weak coupling ( μ) the correlation corrections are very large: of the order of 100\% of the corresponding mean field values.
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