PT symmetric pseudo-perturbation recipe; an imaginary cubic oscillator with spikes
arXiv:math-ph/0206042 · doi:10.1088/0305-4470/35/42/304
Abstract
The pseudo-perturbation shifted-l expansion technique PSLET is shown applicable in the non-Hermitian PT-symmetric context. The construction of bound states for several PT-symmetric potentials is presented, with special attention paid to V(r) = ir^3-alpha sqrt(ir) oscillators.
Revtex file, 22 pages, 2 ps figures, submitted for publication (JPA)