The fixed point action of the Schwinger model

Details The fixed point action of the Schwinger model The fixed point action of the Schwinger model

1997-09-08

arxiv.org/abs/hep-lat/9709013v1

Nucl.Phys.Proc.Suppl. 63 (1998) 907-909

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, LaTeX, 2 figures, uses styles [twoside,fleqn,espcrc2, epsfig], talk presented at Lattice 97

Scientific paper

10.1016/S0920-5632(97)00937-7

We compute the fixed point action for the Schwinger model through an
expansion in the gauge field. The calculation allows a check of the locality of
the action. We test its perfection by computing the 1-loop mass gap at finite
spatial volume.

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