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arxiv: hep-th/0703038 · v1 · pith:M2GL2LVDnew · submitted 2007-03-05 · ✦ hep-th · math-ph· math.MP· quant-ph

Cryptoreality of nonanticommutative Hamiltonians

classification ✦ hep-th math-phmath.MPquant-ph
keywords hamiltoniansdeformedminkowskimodelsnonanticommutativethoughalgebraalong
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We note that, though nonanticommutative (NAC) deformations of Minkowski supersymmetric theories do not respect the reality condition and seem to lead to non-Hermitian Hamiltonians H, the latter belong to the class of ``cryptoreal'' Hamiltonians considered recently by Bender and collaborators. They can be made manifestly Hermitian via the similarity transformation H -> exp{R} H exp{-R} with a properly chosen R. The deformed model enjoys the same supersymmetry algebra as the undeformed one, though being realized differently on the involved canonical variables. Besides quantum-mechanical models, we treat, along similar lines, some NAC deformed field models in 4D Minkowski space.

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