Fourth root of the Kogut-Susskind determinant via infinite component fields
- 18 November 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 70 (9) , 097504
- https://doi.org/10.1103/physrevd.70.097504
Abstract
An example of interpolation by means of local field theories between the case of normal Kogut-Susskind fermions and the case of keeping just the fourth root of the Kogut-Susskind determinant is given. For the fourth root trick to be a valid approximation, certain limits need to be smooth. The question about the validity of the fourth root trick is not resolved, only cast into a local field theoretical framework.Keywords
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