Point Interactions: $$\mathcal{P}\mathcal{T}$$-Hermiticity and Reality of the Spectrum

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Supersymmetry and the spontaneous breakdown of 𝒫𝒯 symmetry

Patrick Dorey, Clare Dunning, Roberto Tateo · Journal of Physics A Mathematical and General · 2001 · 289 citations · Full text

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Systematic search for 𝒫𝒯-symmetric potentials with real energy spectra

G. Lévai, Miloslav Znojil · Journal of Physics A Mathematical and General · 2000 · 278 citations

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−symmetric harmonic oscillators

Miloslav Znojil · Physics Letters A · 1999 · 271 citations · Full text