Nonlinear Properties of the BCS Gap Equation
The iterative solution of the BCS gap equation defines a nonlinear map, which can be studied with the tools developed for nonlinear dynamics. We demonstrate the usefulness of this approach in determining the phase diagram in the superconducting state, in the presence of a non-trivial pairing interaction, having mixed s and d-wave symmetry.
KeywordsGibbs Free Energy Bifurcation Diagram Pairing Interaction Superconducting State Pitchfork Bifurcation
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