2,412 research outputs found
Chiral multicritical points driven by isospin density in the Ginzburg-Landau approach
We study how a chiral tricritical point (TCP) on QCD phase diagram is
affected by the imbalance of up and down quark densities (isospin density),
using the generalized Ginzburg-Landau (GL) approach. The resulting phase
diagram near TCP shows a rich fine structure which includes inhomogeneities of
both the chiral and the charged pion condensations. It turns out that the TCP
splits into multicritical points.Comment: 4 pages, 2 eps figures. Presented at QCD@Work 2012: International
Workshop on QCD - Theory and Experiment, June 18-21, Lecce (Italy
Inter-meson Potentials in Dual Ginzburg-Landau Theory
We calculate inter-meson potentials numerically by solving classical
equations of motion derived from Dual Ginzburg-Landau (DGL) Theory. Inter-meson
potentials in DGL theory are shown to be similar to those of the string-flip
model and well reproduce behaviors of the short-range interaction at the
classical level. We also compare our results with those from lattice QCD Monte
carlo calculations.Comment: 18 pages, latex, 8 figure
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