Static electric field in one-dimensional insulators without boundaries
In this brief report, we show that in a one-dimensional insulating system with periodic boundary conditions, the coefficient of the θ term in the effective theory is not only determined by the topological index ∫i∑[superscript α]∈[superscript occ]〈u[superscript k]α|∂/∂k|u[superscript kα]〉dk. Specifi...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS),
2012-02-17T18:04:37Z.
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| Subjects: | |
| Online Access: | Get fulltext |