Topological Band Theory for Non-Hermitian Hamiltonians
We develop the topological band theory for systems described by non-Hermitian Hamiltonians, whose energy spectra are generally complex. After generalizing the notion of gapped band structures to the non-Hermitian case, we classify “gapped” bands in one and two dimensions by explicitly finding their...
Main Authors: | , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
American Physical Society
2018
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Online Access: | http://hdl.handle.net/1721.1/114634 https://orcid.org/0000-0002-7572-4594 https://orcid.org/0000-0002-8803-1017 |