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.
Siringo, F., & Marotta, L. (2005). A Variational method from the variance of energy. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 44(2), 293-298 [10.1140/epjc/s2005-02358-x].
Data di pubblicazione: | 2005 | |
Titolo: | A Variational method from the variance of energy | |
Autori: | ||
Citazione: | Siringo, F., & Marotta, L. (2005). A Variational method from the variance of energy. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 44(2), 293-298 [10.1140/epjc/s2005-02358-x]. | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1140/epjc/s2005-02358-x | |
Appare nelle tipologie: | 1.01 Articolo in rivista |
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