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L 2-exponential lower bounds to solutions of the Schrödinger equation

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Abstract

We study decay properties of solutions ϕ of the Schrödinger equation (−Δ+V)ϕ=Eϕ. Typical of our results is one which shows that ifV=o(|x|−1/2) at infinity or ifV is a homogeneousN-body potential (for example atomic or molecular), then ifE<0 and\(\alpha > \sqrt { - E} ,e^{\alpha \left| x \right|} \psi \notin L^2 \left( {\mathbb{R}^n } \right)\). We also construct examples to show that previous essential spectrum-dependent upper bounds can be far from optimal if ϕ is not the ground state.

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Communicated by B. Simon

Research in partial fulfillment of the requirements for a Ph.D. degree at the University of Virginia

Partially supported by NSF grant MCS-81-01665

Supported by „Fonds zur Förderung der wissenschaftlichen Forschung in Österreich“, Projekt Nr. 4240

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Froese, R., Herbst, I., Hoffmann-Ostenhof, M. et al. L 2-exponential lower bounds to solutions of the Schrödinger equation. Commun.Math. Phys. 87, 265–286 (1982). https://doi.org/10.1007/BF01218565

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  • DOI: https://doi.org/10.1007/BF01218565

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