Lee-Yang Zeroes and Logarithmic Corrections in the $Φ^4_4$ Theory

Details Lee-Yang Zeroes and Logarithmic Corrections in the $Φ^4_4$ Theory Lee-Yang Zeroes and Logarithmic Corrections in the $Φ^4_4$ Theory

1992-10-13

arxiv.org/abs/hep-lat/9210017v1

Nucl. Phys. B (Proc. Suppl.) 30 (1993) 697

Physics

High Energy Physics

High Energy Physics - Lattice

4 p + 1 PS-figure

Scientific paper

10.1016/0920-5632(93)90305-P

The leading mean-field critical behaviour of $\phi^4_4$-theory is modified by multiplicative logarithmic corrections. We analyse these corrections both analytically and numerically. In particular we present a finite-size scaling theory for the Lee-Yang zeroes and temperature zeroes, both of which exhibit logarithmic corrections. On lattices from size $8^4$ to $24^4$, Monte-Carlo cluster methods and multi-histogram techniques are used to determine the partition function zeroes closest to the critical point. Finite-size scaling behaviour is verified and the logarithmic corrections are found to be in good agreement with our analytical predictions.

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