"Non UBC"@en .
"DSpace"@en .
"Guo Chuan Thiang"@en .
"2019-12-03T10:23:50Z"@en .
"2019-06-05T11:30"@en .
"It is known that a momentum space Chern class obstructs existence of good tight-binding models in position space. This is a T-duality, and holds in more general geometric contexts, e.g. crystallographic, defective, and non-Euclidean effective interacting topological phases. Namely, good Wannier bases correspond to free modules over pre-C*-algebras of the symmetry group. Thus K-theory and T-duality give precise tools to find topological insulators and understand their boundary gapless modes; explicit new examples will be given. Joint with M. Ludewig."@en .
"https://circle.library.ubc.ca/rest/handle/2429/72510?expand=metadata"@en .
"63.0 minutes"@en .
"video/mp4"@en .
""@en .
"Author affiliation: University of Adelaide"@en .
"Oaxaca (Mexico : State)"@en .
"10.14288/1.0386696"@en .
"eng"@en .
"Unreviewed"@en .
"Vancouver : University of British Columbia Library"@en .
"Banff International Research Station for Mathematical Innovation and Discovery"@en .
"Attribution-NonCommercial-NoDerivatives 4.0 International"@en .
"http://creativecommons.org/licenses/by-nc-nd/4.0/"@en .
"Postdoctoral"@en .
"BIRS Workshop Lecture Videos (Oaxaca (Mexico : State))"@en .
"Mathematics"@en .
"Quantum Theory, Mathematical Physics"@en .
"(Non)-existent atomic limits: geometric meaning of K-theory in the solid-state"@en .
"Moving Image"@en .
"http://hdl.handle.net/2429/72510"@en .