Photonic Topological States in a Two-Dimensional Gyrotropic Photonic Crystal
Time-reversal symmetry (TRS) of electrons is associated with an anti-unitary operator with T 2 = − 1 , which induces Kramers degeneracy and plays an important role in realizing the quantum spin Hall effect (QSHE). By contrast, TRS of photons is described by T b 2 = 1 . We...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-03-01
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| Series: | Crystals |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2073-4352/9/3/137 |