Topological insulator and the theta vacuum in a system without boundaries
Name
Chen-2011-Topological insulato.pdf
Size
225.95 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Chen, Kuang-Ting
Lee, Patrick A.
Alternative Title
Topological insulator and the θ vacuum in a system without boundaries
Date Issued
March 2011
Journal
Physical Review B
Publisher
American Physical Society
Citation
Chen, Kuang-Ting, and Patrick Lee. “Topological insulator and the θ vacuum in a system without boundaries.” Physical Review B 83 (2011). ©2011 American Physical Society.
Version
Final published version
Abstract
In this paper we address two questions concerning the effective action of a topological insulator in one- and three-dimensional space without boundaries, such as a torus. The first is whether a uniform theta term with theta=pi is generated for a strong topological insulator. The second is whether such a term has observable consequences in the bulk. The answers to both questions are positive, but the observability in three dimensions vanishes for infinite system size.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevB.83.125119
