Bogoliubov-de Gennes Method and Its Applications (Lecture by Jian-Xin Zhu

By Jian-Xin Zhu

The goal of this booklet is to supply an ordinary but systematic description of the Bogoliubov-de Gennes (BdG) equations, their particular symmetry houses and their relation to Green’s functionality idea. in particular, it introduces readers to the supercell process for the strategies of the BdG equations, in addition to different similar suggestions for extra swiftly fixing the equations in sensible applications.

The BdG equations are derived from a microscopic version Hamiltonian with an efficient pairing interplay and entirely catch the neighborhood digital constitution via self-consistent ideas through certain diagonalization. This process has been effectively generalized to check many elements of traditional and unconventional superconductors with inhomogeneities – together with defects, disease or the presence of a magnetic box – and turns into a good extra beautiful selection while the first-principles details of a customary superconductor is integrated through the development of a low-energy tight-binding version. extra, the lattice BdG method is vital while theoretical effects for neighborhood digital states round such defects are in comparison with the scanning tunneling microscopy measurements.

Altogether, those lectures offer a well timed primer for graduate scholars and non-specialist researchers, whereas additionally supplying an invaluable reference consultant for specialists within the field.

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