Mana, G;
Pelissetto, A;
Sokal, AD;
Asymptotic scaling in the two-dimensional $SU(3)$ $σ$-model at correlation length $4 \times 10^5$.
**Phys.Rev.D**
, 54
pp. 1252-1255.
10.1103/PhysRevD.54.R1252.

## Abstract

We carry out a high-precision simulation of the two-dimensional $SU(3)$ principal chiral model at correlation lengths $\xi$ up to $\approx\! 4 \times 10^5$, using a multi-grid Monte Carlo (MGMC) algorithm. We extrapolate the finite-volume Monte Carlo data to infinite volume using finite-size-scaling theory, and we discuss carefully the systematic and statistical errors in this extrapolation. We then compare the extrapolated data to the renormalization-group predictions. For $\xi \gtapprox 10^3$ we observe good asymptotic scaling in the bare coupling; at $\xi \approx 4 \times 10^5$ the nonperturbative constant is within 2--3\% of its predicted limiting value.

Type: | Article |
---|---|

Title: | Asymptotic scaling in the two-dimensional $SU(3)$ $σ$-model at correlation length $4 \times 10^5$ |

DOI: | 10.1103/PhysRevD.54.R1252 |

Publisher version: | http://dx.doi.org/10.1103/PhysRevD.54.R1252 |

Additional information: | 13 pages (includes 3 figures), self-unpacking uuencoded .tar.gz |

Keywords: | hep-lat, hep-lat |

UCL classification: | UCL > School of BEAMS > Faculty of Maths and Physical Sciences UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Mathematics |

URI: | http://discovery.ucl.ac.uk/id/eprint/82846 |

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