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Perfectly invisible $\mathcal{PT}$-symmetric zero-gap systems, conformal field theoretical kinks, and exotic no... https://t.co/RCZm5H3ZkH
Perfectly invisible $\mathcal{PT}$-symmetric zero-gap systems, conformal field theoretical kinks, and exotic no... https://t.co/RCZm5H3ZkH
https://t.co/ezvZgj6Eov J M Guilarte, M S Plyushchay Perfectly invisible $\mathcal{PT}$-symmetric zero-gap systems, conformal field theore https://t.co/YjFd7KRC0t