Topological insulator and the theta vacuum in a system without boundaries
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 su...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society,
2011-09-30T14:45:16Z.
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| Subjects: | |
| Online Access: | Get fulltext |