Cryptoreality of nonanticommutative Hamiltonians
High Energy Physics - Theory
2010-10-27 v1 Mathematical Physics
math.MP
Quantum Physics
Abstract
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.
Cite
@article{arxiv.hep-th/0703038,
title = {Cryptoreality of nonanticommutative Hamiltonians},
author = {E. A. Ivanov and A. V. Smilga},
journal= {arXiv preprint arXiv:hep-th/0703038},
year = {2010}
}
Comments
15 pages, 2 figures