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

By Jian-Xin Zhu

The function of this e-book is to supply an ordinary but systematic description of the Bogoliubov-de Gennes (BdG) equations, their designated symmetry homes and their relation to Green’s functionality idea. in particular, it introduces readers to the supercell strategy for the recommendations of the BdG equations, in addition to different comparable recommendations for extra speedily fixing the equations in useful applications.

The BdG equations are derived from a microscopic version Hamiltonian with a good pairing interplay and completely trap the neighborhood digital constitution via self-consistent recommendations through targeted diagonalization. This procedure has been effectively generalized to check many facets 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 regular superconductor is included through the development of a low-energy tight-binding version. extra, the lattice BdG strategy is key whilst theoretical effects for neighborhood digital states round such defects are in comparison with the scanning tunneling microscopy measurements.

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

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