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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-17744
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.1774
Zusammenfassung
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 nonstandard 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.