Classification of topological trivial matter with non-trivial defects.

Tsui, Lokman; Li, Zi-Xiang; Huang, Yen-Ta; Louie, Steven G; Lee, Dung-Hai

Tsui, Lokman; Li, Zi-Xiang; Huang, Yen-Ta; Louie, Steven G; Lee, Dung-Hai.

Afiliação

Tsui L; Department of Physics, University of California, Berkeley, CA 94720, USA.
Li ZX; Department of Physics, University of California, Berkeley, CA 94720, USA.
Huang YT; Department of Physics, University of California, Berkeley, CA 94720, USA.
Louie SG; Department of Physics, University of California, Berkeley, CA 94720, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Lee DH; Department of Physics, University of California, Berkeley, CA 94720, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Electronic address: dunghai@berkeley.edu.

Sci Bull (Beijing) ; 64(9): 575-579, 2019 May 15.

Article em En | MEDLINE | ID: mdl-36659624

ABSTRACT

ABSTRACT

In this paper, we apply the K-theory to classify topological trivial fermionic phases which, nonetheless, host symmetry-protected non-trivial defects. An important implication of our work is that the existence of Majorana zero mode in the vortex core is neither a necessary nor a sufficient condition for the superconductor in question being topologically non-trivial.

Palavras-chave

K-theory; Majorana zero mode; Symmetry protected topological phase; Topological defect; Topological superconductor

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos

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