## Abstract

We study the performance of a Wolff-type embedding algorithm for RP^{N} σ-models. We find that the algorithm in which we update the embedded Ising model à la Swendsen-Wang has critical slowing-down as z_{x} ≈ 1. If instead we update the Ising spins with a perfect algorithm which at every iteration produces a new independent configuration, we obtain z_{x} ≈ 0. This shows that the Ising embedding encodes well the collective modes of the system, and that the behaviour of the first algorithm is connected to the poor performance of the Swendsen-Wang algorithm in dealing with a frustrated Ising model.

Original language | English (US) |
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Pages (from-to) | 595-597 |

Number of pages | 3 |

Journal | Nuclear Physics B (Proceedings Supplements) |

Volume | 26 |

Issue number | C |

DOIs | |

State | Published - 1992 |

## ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics

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