PT-symmetric pseudo-perturbation recipe: an imaginary cubic oscillator with spikes
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Publication:4450108
DOI10.1088/0305-4470/35/42/304zbMath1042.81019arXivmath-ph/0206042OpenAlexW3106348553MaRDI QIDQ4450108
Publication date: 15 February 2004
Published in: Journal of Physics A: Mathematical and General (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/math-ph/0206042
Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics (81Q05) Perturbation theories for operators and differential equations in quantum theory (81Q15)
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