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arxiv: hep-th/0104119 · v3 · submitted 2001-04-12 · ✦ hep-th · cond-mat· math-ph· math.MP· nlin.SI· quant-ph

Supersymmetry and the spontaneous breakdown of PT symmetry

classification ✦ hep-th cond-matmath-phmath.MPnlin.SIquant-ph
keywords supersymmetrybreakingspontaneousappearancesassociatedbreakdowncasescertain
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The appearances of complex eigenvalues in the spectra of PT-symmetric quantum-mechanical systems are usually associated with a spontaneous breaking of PT. In this letter we discuss a family of models for which this phenomenon is also linked with an explicit breaking of supersymmetry. Exact level-crossings are located, and connections with N-fold supersymmetry and quasi-exact solvability in certain special cases are pointed out.

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