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VIDEO LIBRARY |
International conference in memory of M. K. Polivanov "Polivanov–90"
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Topological insulators invariant with respect to time reversal A. G. Sergeev Steklov Mathematical Institute of Russian Academy of Sciences, Moscow |
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Abstract: The talk is devoted to the theory of topological insulators which is an actively developing direction in the solid state physics. The search for new topological objects is reduced to the search of appropriate topological invariants and systems having non-trivial invariants. Such systems are characterized by wide energetic gaps stable with respect to small deformations. The quantum spin Hall insulator may be considered as a non-trivial example of such systems. It is a two-dimensional insulator invariant under time reversal. It has a non-zero topological * Conference identificator: 931 2278 9257 Password: 045927 |