Rayleigh-Schrodinger perturbation theory based on Gaussian wave functionalapproach - art. no. 025006

Authors
Lu, WF Kim, CK Yee, JH Nahm, K
Citation
Wf. Lu et al., Rayleigh-Schrodinger perturbation theory based on Gaussian wave functionalapproach - art. no. 025006, PHYS REV D, 6402(2), 2001, pp. 5006
Citations number
76
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6402
Issue
2
Year of publication
2001
Database
ISI
SICI code
0556-2821(20010715)6402:2<5006:RPTBOG>2.0.ZU;2-U
Abstract
A Rayleigh-Schrodinger perturbation theory based on the Gaussian wave funct ional is constructed. The method can be used for calculating the energies o f both the vacuum and the excited states. A model calculation is carried ou t for the vacuum state of the lambda phi (4) field theory.