Symmetry-protected exceptional and nodal points in non-Hermitian systems
One of the unique features of non-Hermitian (NH) systems is the appearance of NH degeneracies known as exceptional points (EPs). The extensively studied defective EPs occur when the Hamiltonian becomes non-diagonalizable. Aside from this degeneracy, we show that NH systems may host two further types...
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| Format: | Artigo |
| Sprog: | Inglês |
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SciPost
2023-11-01
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| Serier: | SciPost Physics |
| Online adgang: | https://scipost.org/SciPostPhys.15.5.200 |
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