Physics – Quantum Physics
Scientific paper
1999-07-02
Phys.Lett. A259 (1999) 224-231
Physics
Quantum Physics
9 pages -- one postscript figure
Scientific paper
10.1016/S0375-9601(99)00468-5
A variational calculation of the energy levels of a class of PT-invariant quantum mechanical models described by the non-Hermitian Hamiltonian H= p^2 - (ix)^N with N positive and x complex is presented. Excellent agreement is obtained for the ground state and low lying excited state energy levels and wave functions. We use an energy functional with a three parameter class of PT-symmetric trial wave functions in obtaining our results.
Bender Carl
Cooper Fred
Meisinger Peter
Savage Van M.
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