Understanding BCS Theory

Details Understanding BCS Theory Understanding BCS Theory

2001-01-08

arxiv.org/abs/cond-mat/0101088v1

Physics

Condensed Matter

Superconductivity

3 pages, 2 figures included

Scientific paper

New calculation reveals that E is constant in a thin layer across the Fermi surface, befitting the definition of energy gap parameter, Delta varies dramatically. The BCS self-consistent equation has a simple and exact solution, showing that the well-known ratio 3.5 must be replaced by 4. A simple formula is found to estimate energy gap from first principles with reasonable accuracy, useful to the current research into high Tc superconductivity.

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