Behavior of eigenvalues in a region of broken-PT symmetry

Carl M. Bender, Nima Hassanpour, Daniel W. Hook +3

PT-symmetric quantum mechanics began with a study of the Hamiltonian $H=p^2+x^2(ix{)}^{\epsilon }$. When $\epsilon \ge 0$, the eigenvalues of this non-Hermitian Hamiltonian are dis…