### Abstract

We study two-color lattice QCD with massless staggered fermions in the strong coupling limit using a new and efficient cluster algorithm. We focus on the phase diagram of the model as a function of temperature T and baryon chemical potential mby working on L_{t} × L^{d} lattices in both d = 2, 3. In d = 3 we find that at m = 0 the ground state of the system breaks the global U(2) symmetry present in the model to U(1), while the finite temperature phase transition (with L_{t} = 4) which restores the symmetry is a weak first order transition. In d = 2 we find evidence for a novel phase transition similar to the Berezinky-Kosterlitz-Thouless phenomena. On the other hand the quantum (T = 0) phase transition to a symmetric phase as a function of mis second order in both d = 2, 3 and belongs to the mean field universality class.

Original language | English |
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Journal | Proceedings of Science |

Volume | 20 |

Publication status | Published - 2005 Jan 1 |

Event | 23rd International Symposium on Lattice Field Theory, LAT 2005 - Dublin, Ireland Duration: 2005 Jul 25 → 2005 Jul 30 |

### ASJC Scopus subject areas

- General

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## Cite this

*Proceedings of Science*,

*20*.