Topological number and fermion Green's function for strongly interacting topological superconductors
نویسندگان
چکیده
منابع مشابه
Topological order parameters for interacting topological insulators.
We propose a topological order parameter for interacting topological insulators, expressed in terms of the full Green's functions of the interacting system. We show that it is exactly quantized for a time-reversal invariant topological insulator, and it can be experimentally measured through the topological magneto-electric effect. This topological order parameter can be applied to both interac...
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Zhiyuan Wang,1,2,* Youjiang Xu,2 Han Pu,2,3,4 and Kaden R. A. Hazzard2,4 1School of Physics, Peking University, Beijing 100871, China 2Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA 3Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China 4Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA (Received 3 March 2017;...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2014
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.90.060502