45 citations · 402 across the 46 of their papers we have counts for
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math-ph2015★ 3 cited
Topological insulators and K-theory
Ralph M. Kaufmann, Dan Li, Birgit Wehefritz-Kaufmann
We analyze the topological invariant, which characterizes time reversal invariant topological insulators, in the framework of index theory and K-theory. The topologi…
math-ph2015★ 37 cited
Notes on topological insulators
Ralph M. Kaufmann, Dan Li, Birgit Wehefritz-Kaufmann
This paper is a survey of the -valued invariant of topological insulators used in condensed matter physics. The -valued topological invariant, which was o…