Non-Hermitian photonics promises exceptional topology of light

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作者：
Bikashkali Midya
Han Zhao
Liang Feng
机构：
[1] University of Pennsylvania,Department of Materials Science and Engineering
[2] University of Pennsylvania,Department of Electrical and Systems Engineering
来源：
Nature Communications | / 9卷
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摘要：
The band degeneracy, either the exceptional point of a non-Hermitian system or the Dirac point associated with a topological system, can feature distinct symmetry and topology. Their synergy will further produce more exotic topological effects in synthetic matter.
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