A variational method from the variance of energy

Details A variational method from the variance of energy A variational method from the variance of energy

2005-06-28

arxiv.org/abs/hep-ph/0506284v1

Eur.Phys.J.C44:293-298,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 ps figures

Scientific paper

10.1140/epjc/s2005-02358-x

A variational method is studied based on the minimum of energy variance. The
method is tested on exactly soluble problems in quantum mechanics, and is shown
to be a useful tool whenever the properties of states are more relevant than
the eigenvalues. In quantum field theory the method provides a consistent
second order extension of the gaussian effective potential.

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