2021 Impact factor 4.991
Particles and Fields
Eur. Phys. J. C 17, 169-172
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