Su-Schrieffer-Heeger chain with one pair of $$\mathcal{P}\mathcal{T}$$ 𝒫 𝒯 -symmetric defects

Abstract The topologically nontrivial edge states induce $$\mathcal{P}\mathcal{T}$$ 𝒫 𝒯 transition in Su-Schrieffer-Heeger (SSH) chain with one pair of gain and loss at boundaries. In this study, we investigated a pair of $$\mathcal{P}\mathcal{T}$$ 𝒫 𝒯 -symmetric defects located inside the SSH chain...

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Bibliographic Details
Main Authors: L. Jin, P. Wang, Z. Song
Format: article
Language:EN
Published: Nature Portfolio 2017
Subjects:
R
Q
Online Access:https://doaj.org/article/7585dda186dc41c181d651aa7d77608d
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