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|Title:||Robust localized zero-energy modes from locally embedded PT-symmetric defects||Authors:||Mostafavi, Fatemeh
Magana-Loaiza, Omar S.
|Issue Date:||2020||Publisher:||Amer Physical Soc||Abstract:||We demonstrate the creation of robust localized zero-energy states that are induced into topologically trivial systems by the insertion of a PT-symmetric defect with local gain and loss. A pair of robust localized states induced by the defect turns into zero-energy modes when the gain-loss contrast exceeds a threshold, at which the defect states encounter an exceptional point. Our approach can be used to obtain robust lasing or perfectly absorbing modes in any part of the system.||URI:||https://doi.org/10.1103/PhysRevResearch.2.032057
|Appears in Collections:||Kimya Bölümü Koleksiyonu|
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