Adding a complex shift to HVPT

作者:Killingbeck John P*
来源:Journal of Physics A-Mathematical and Theoretical, 2009, 42(11): 115301.
DOI:10.1088/1751-8113/42/11/115301

摘要

A complex coordinate shift is incorporated in renormalized hypervirial perturbation theory. Test calculations on harmonic oscillators with cubic perturbations show that the resulting method produces accurate numerical results for the real energies of PT symmetric Hamiltonians with complex potentials and for the complex resonance energies of Hamiltonians with real potentials.

  • 出版日期2009-3-20

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