TY - JOUR
T1 - Chiral limit of 2-color QCD at strong couplings
AU - Chandrasekharan, Shailesh
AU - Jiang, Fu Jiun
N1 - Funding Information:
We thank S. Hands, C. Strouthos, T. Mehen, R. Springer, D. Toublan and U.-J. Wiese for helpful comments. This work was supported in part by the Department of Energy (DOE) grant DE-FG02-03ER41241. The computations were performed on the CHAMP, a computer cluster funded in part by the DOE. We also thank Robert G. Brown for technical support and allowing us to use his computer cluster for additional computing time.
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-ShareAlike Licence.
PY - 2005
Y1 - 2005
N2 - 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 Lt × Ld 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 Lt = 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.
AB - 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 Lt × Ld 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 Lt = 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.
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M3 - Conference article
AN - SCOPUS:85056898210
VL - 20
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
T2 - 23rd International Symposium on Lattice Field Theory, LAT 2005
Y2 - 25 July 2005 through 30 July 2005
ER -