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Upper and lower bounds to eigenvalues from variational functionals

Francisco M. Fernández and Eduardo A. Castro
Phys. Rev. A 35, 4861 – Published 1 June 1987
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Abstract

Upper and lower bounds to the energy of quantum-mechanical parameter-dependent systems are obtained from variational functionals. Results are shown for the Zeeman effect in hydrogen and the anharmonic oscillator.

  • Received 1 December 1986

DOI:https://doi.org/10.1103/PhysRevA.35.4861

©1987 American Physical Society

Authors & Affiliations

Francisco M. Fernández and Eduardo A. Castro

  • Instituto de Investigaciones Fisicoquimicas Teóricas y Aplicadas, División Quimica Teórica, Sucursal 4, Casilla de Correo 16, (1900) La Plata, Argentina

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Vol. 35, Iss. 11 — June 1987

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