Some Considerations on Lattice Gauge Fixing
نویسنده
چکیده
Some problems related to Gribov copies in lattice gauge-fixing and their possible solution are discussed. 1 Gribov and Gauge-Fixing Problem The Faddeev-Popov[1] quantization gives a meaning to the formal (euclidean) expectation value of a gauge invariant observable operator: 〈O〉 = ∫ δA exp[−S(A)] O(A) ∫ δA exp[−S(A)] (1) The Faddeev-Popov method requires the choice of a gauge fixing condition: f(A) = 0 (2) in terms of which we define ∆(A) as: ∆(A) · ∫
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