Lattice study of the massive Schwinger model with aterm under Lüscher’s “admissibility” condition
- 23 October 2003
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 68 (7)
- https://doi.org/10.1103/physrevd.68.074503
Abstract
L\"uscher's ``admissibility'' condition on the gauge field space plays an essential role in constructing lattice gauge theories which has exact chiral symmetries. We apply the gauge action proposed by L\"uscher with the domain-wall fermion action to the numerical simulation of the massive Schwinger model. We find this action can generate configurations in each topological sector separately without any topology changes. By developing a new method to sum over different topological sectors, we calculate meson masses in nonzero-$\theta$ vacuum.Comment: 16 pages, REVTeX4, 21 figureKeywords
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