| M.Creutz (ed.), Quantum Fields on the Computer (World Scientific Publishing Co. Pte. Ltd., Singapore 1992). |
....Theory Simulations The simulation of pure gauge theory on the lattice is a typical local relaxation procedure. The basic variables are SU(N) matrices (N = 2 or 3) living on the links 1 of a cubic lattice in four dimensions, and these matrices have to be changed ( updated ) one after the other [7]. Thus, a matrix U (x) will be replaced by new matrix U 0 (x) which depends on those neighbouring ones which contribute, together with U (x) to the Wilson action SW = fi X sites x X plaq tr N 2 4 Y l;x 0 2plaq (U l (x 0 ) Gamma 1) 3 5 (1) In the relaxation step for U (x) ....
M.Creutz (ed.), Quantum Fields on the Computer (World Scientific Publishing Co. Pte. Ltd., Singapore 1992).
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