Talk presented by Martin Hasenbusch

Parallel Session: Spin Models I

Thursday July 1st, 14.30 - 14.50, Room B

Eliminating leading order corrections to scaling in 3D $\phi^4$ theory

Abstract: We present a Monte Carlo study of the $\phi^4$ model on the cubic lattice in three dimensions. Leading order scaling corrections are studied using the finite size scaling method. We compute the corrections to scaling exponent $\omega$ with high precision. We determine the value of the coupling $\lambda$ at which leading order corrections to scaling vanish. Using this result we obtain estimates for critical exponents that are more precise than hose obtained with field theoretic methods.

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