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arXiv · hep-th/9701184

Finite Size Scaling and Running Coupling Constant in CP(N-1) models

Emanuele Manfredini
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Abstract

In this work I present a numerical study of the Finite Size Scaling (FSS) of a correlation length in the framework of the $CP ^{N-1}$ model by means of the 1/N expansion. This study has been thought as propedeutical to the application of FSS to the measure on the lattice of a new coupling constant $f_{x}(1/R)$, defined in terms or rectangular Wilson Loops. I give also a perturbative expansion of $f_{x}(1/R)$ in powers of the corresponding coupling constant in the $\overline{MS}$ scheme together with some preliminary numerical results obtained from the Polyakov ratio and I point out the conceptual problems that limit this approach.

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Emanuele Manfredini. 1997-01-30. Finite Size Scaling and Running Coupling Constant in CP(N-1) models. https://doi.org/10.1142/s0217751x98000391

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