Variational method for lattice spectroscopy with ghosts

Details Variational method for lattice spectroscopy with ghosts Variational method for lattice spectroscopy with ghosts

2005-11-24

arxiv.org/abs/hep-lat/0511054v1

Phys.Rev. D73 (2006) 017502

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 1 figure

Scientific paper

10.1103/PhysRevD.73.017502

We discuss the variational method used in lattice spectroscopy calculations.
In particular we address the role of ghost contributions which appear in
quenched or partially quenched simulations and have a non-standard euclidean
time dependence. We show that the ghosts can be separated from the physical
states. Our result is illustrated with numerical data for the scalar meson.

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