On the $$C^*$$C∗-Algebraic Approach to Topological Phases for Insulators
On the $$C^*$$C∗-Algebraic Approach to Topological Phases for Insulators
复制标题
关于绝缘体拓扑相的$$C^*$$C*-代数方法
DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
J. Kellendonk
中科院分区:
文献类型:
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作者:
J. Kellendonk
The notion of a topological phase of an insulator is based on the concept of homotopy between Hamiltonians. It therefore depends on the choice of a topological space to which the Hamiltonians belong. We advocate that this space should be the $$C^*$$C∗-algebra of observables. We relate the symmetries of insulators to graded real structures on the observable algebra and classify the topological phases using van Daele’s formulation of K-theory. This is related but not identical to Thiang’s recent approach to classify topological phases by K-groups in Karoubi’s formulation.
影响因子:
2.4
作者:
R. Kennedy;M.R. Zirnbauer
通讯作者:
M.R. Zirnbauer