Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9868471 | Physics Letters A | 2005 | 10 Pages |
Abstract
The quantal eigenenergy spectrum and the classical motion of the 2D system ν(x,g)=12(Ïx2x2+Ïy2y2)+gxy2 where gâ[â0.01,0.01] are investigated. Like in the real Hermitian systems, when this system is non-Hermitian and PT-symmetric (g<0), two regions of quantal spectrum, which behave differently under the slowly changing perturbation parameter g, are found. It was found that the most of the higher order second differences of eigenvalues as a function of perturbation parameter correspond to avoided crossings.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Asiri Nanayakkara,