Comment on the article by Bender et al, J. Phys. A 35, L467 (2002)

Details Comment on the article by Bender et al, J. Phys. A 35, L467 (2002) Comment on the article by Bender et al, J. Phys. A 35, L467 (2002)

2002-08-16

arxiv.org/abs/math-ph/0208021v1

Physics

Mathematical Physics

Submitted to J. Phys. A

Scientific paper

The recent Letter by Bender, Berry, and Mandilara (2002, BBM) presents some interesting symmetry arguments which enable one to transform non-hermitian, PT invariant, (complex) polynomial potential hamiltonians, into secular equation representations with real coefficients. This achievement is claimed to ``demistify'' why these systems can admit real and/or complex eigenenergies. Two approximations underly their arguments, and weaken the implied significance of their work.

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