Cherbal, O.; Drir, M.; Maamache, M.; Trifonov, D.A.
(Symmetry, Integrability and Geometry: Methods and Applications, 2010)
A new class of non-Hermitian Hamiltonians with real spectrum, which are written as a real linear combination of su(2) generators in the form H=ωJ₃+αJ₋+βJ₊, α≠β, is analyzed. The metrics which allows the transition to the ...