DOI 10.1007/s100520000441
New look at the Lanczos method in the lattice gauge model
A. Darooneh1 - M. Modarres2,3
1 Institute for Advanced Studies in Basic Sciences,
P.O. Box 45195-159, Zanjan, Iran
2 Physics Department, Tehran University, Karegar Ave., Tehran, Iran
3 Center for Theoretical Physics and Mathematics, P.O. Box
11365-8486, Tehran, Iran
Received: 17 December 1999 / Published online: 9 August 2000 - © Springer-Verlag 2000
Abstract
In the present work we combine the Lanczos algorithm and the lowest
order
constrained variational method (LOCV) to obtain a simple version
of
the Lanczos algorithm. In order to test the method the ground
state
energy and the antisymmetric mass gap of the U(1) lattice gauge
model are
calculated, and the results are compared with those computed
by other many body methods.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
