Ankündigung Erscheint vsl. Dezember 2020 Abbildung von Alase | Boundary Physics and Bulk-Boundary Correspondence in Topological Phases of Matter | 1. Auflage | 2020 | beck-shop.de

Alase

Boundary Physics and Bulk-Boundary Correspondence in Topological Phases of Matter

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Buch. Softcover

1st ed. 2019. 2020

xvii, 200 S. 4 s/w-Abbildungen, 19 Farbabbildungen, 22 Farbtabellen, Bibliographien.

Springer. ISBN 978-3-030-31962-5

Format (B x L): 15,5 x 23,5 cm

Das Werk ist Teil der Reihe: Springer Theses

Produktbeschreibung

This thesis extends our understanding of systems of independent electrons by developing a generalization of Bloch’s Theorem which is applicable whenever translational symmetry is broken solely due to arbitrary boundary conditions. The thesis begins with a historical overview of topological condensed matter physics, placing the work in context, before introducing the generalized form of Bloch's Theorem. A cornerstone of electronic band structure and transport theory in crystalline matter, Bloch's Theorem is generalized via a reformulation of the diagonalization problem in terms of corner-modified block-Toeplitz matrices and, physically, by allowing the crystal momentum to take complex values. This formulation provides exact expressions for all the energy eigenvalues and eigenstates of the single-particle Hamiltonian. By precisely capturing the interplay between bulk and boundary properties, this affords an exact analysis of several prototypical models relevant to symmetry-protected topological phases of matter, including a characterization of zero-energy localized boundary excitations in both topological insulators and superconductors. Notably, in combination with suitable matrix factorization techniques, the generalized Bloch Hamiltonian is also shown to provide a natural starting point for a unified derivation of bulk-boundary correspondence for all symmetry classes in one dimension.

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