Physics – Mathematical Physics
Scientific paper
2004-10-04
Physics
Mathematical Physics
review lecture for Proceedings ``Recent Trends in Exponential Asymptotics" (June 28 - July 2, RIMS, Kyoto), 14 p
Scientific paper
Hill-determinant method is described and shown applicable within the so called PT-symmetric quantum mechanics. We demonstrate that in a way paralleling its traditional Hermitian applications and proofs the method guarantees the necessary asymptotic decrease of wave functions as resulting from a fine-tuned mutual cancellation of their asymptotically growing exponential components. Technically, the rigorous proof is needed/offered that in a quasi-variational spirit the method allows us to work, in its numerical implementations, with a sequence of truncated forms of the rigorous Hill-determinant power series for the normalizable bound states.
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