Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2008-03-21
JHEP0805:057,2008
Physics
High Energy Physics
High Energy Physics - Lattice
15 pages
Scientific paper
10.1088/1126-6708/2008/05/057
We study a product rule and a difference operator equipped with Leibniz rule in a general framework of lattice field theory. It is shown that the difference operator can be determined by the product rule and some initial data through the Leibniz rule. This observation leads to a no-go theorem that it is impossible to construct any difference operator and product rule on a lattice with the properties of (i) translation invariance, (ii) locality and (iii) Leibniz rule. We present a formalism to overcome the difficulty by an infinite flavor extension or a matrix expression of a lattice field theory.
Kato Mitsuhiro
Sakamoto Makoto
So Hiroto
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