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The twisting trick for double well Hamiltonians. (English) Zbl 0524.47019

MSC:
47B25 Linear symmetric and selfadjoint operators (unbounded)
81Q10 Selfadjoint operator theory in quantum theory, including spectral analysis
81V55 Molecular physics
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[7] Harrell, E.M., Klaus, M.: On the double well problem for Dirac operators. Preprint 1981 · Zbl 0529.35062
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