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https://doi.org/10.1103/physre...
Article . 1995 . Peer-reviewed
License: APS Licenses for Journal Article Re-use
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Variational estimates for excited states

Authors: , Karl; , Novikov;

Variational estimates for excited states

Abstract

Approximate energies for {ital excited} states of two- and three-body systems (with confining power law potentials) are obtained by a naive application of the variational method. The error in the excited state energies is similar to the error for ground state energies, less than 1%. The asymptotic form of the energy is obtained directly by semiclassical arguments: the form is correct but the leading coefficient has a small error. A classical variational principle, for the expectation value of the Hamiltonian, for periodic motion with constant action, is also discussed. Variational estimates are used to confirm and extend a negative result on nucleon resonances due to Hogaasen and Richard.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Average
Average